Mitsubishi M37735EHBXXXFP Datasheet
MITSUBISHI MICROCOMPUTERS
M37735EHBXXXFP
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
DESCRIPTION
The M37735EHBXXXFP is a single-chip microcomputer using the
7700 Family core. This single-chip microcomputer has a CPU and a
bus interface unit. The CPU is a 16-bit parallel processor that can be
an 8-bit parallel processor, and the bus interface unit enhances the
memory access efficiency to execute instructions fast. This
microcomputer also includes a 32 kHz oscillation circuit, in addition
to the PROM, RAM, multiple-function timers, serial I/O, A-D converter,
and so on.
The M37735EHBXXXFP has the same function as the
M37735MHBXXXFP except that the built-in ROM is PROM. For
program development, the M37735EHBFS with erasable ROM that
is housed in a windowed ceramic LCC is also provided. (Refer to the
basic function blocks description.)
FEATURES
●Number of basic instructions .................................................. 103
●Memory size PROM .............................................124 Kbytes
RAM................................................3968 bytes
●Instruction execution time
The fastest instruction at 25 MHz frequency ...................... 160 ns
M37735EHBFS
PROM VERSION OF M37735MHBXXXFP
●Single power supply ...................................................... 5 V ± 10%
●Low power dissipation (at 25 MHz frequency)
............................................47.5 mW (Typ.)
●Interrupts ............................................................ 19 types, 7 levels
●Multiple-function 16-bit timer ................................................. 5 + 3
●Serial I/O (UART or clock synchronous) ..................................... 3
●10-bit A-D converter ............................................ 8-channel inputs
●Watchdog timer
●Programmable input/output
(ports P0, P1, P2, P3, P4, P5, P6, P7, P8) ............................... 68
●Clock generating circuit ........................................ 2 circuits built-in
APPLICATION
Control devices for general commercial equipment such as office
automation, office equipment, and so on.
Control devices for general industrial equipment such as
communication equipment, and so on.
Note. Do not use the windowed EPROM version for mass production,
because it is a tool for program development (for evaluation).
PIN CONFIGURATION (TOP VIEW)
1
/RTS
1
P84/CTS
P85/CLK1
64
63
P82/RXD0/CLKS0
P80/CTS
0
P77/AN7/XcIN
P76/AN6/XcOUT
P75/AN5/AD
P74/AN4/RxD2
P73/AN3/CLK2
P72/AN2/CTS2
P83/TXD0
P81/CLK0
/RTS0/CLKS1
AVCC
VREF
AVSS
TRG
/TxD2
P71/AN1
VCC
VSS
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
2
1
P70/AN0
P67/TB2IN/φSUB
62
3
P66/TB1IN
6/RXD1 P87/TXD1
P8
2
3
4
3/CS
4/CS
P0
P0
58
59
56
57
61
P00/CS0 P01/CS1 P02/CS
60
M37735EHBXXXFP
6
4
P65/TB0IN
5
P64/INT2 P63/INT
9
8
7
1
0
P62/INT
P61/TA4IN
P60/TA4OUT
5/RSMP
P0
P06/A16
55
54
11
10
3
2
P57/TA3IN/KI
P56/TA3OUT/KI
7/A17 P10/A8/D8 P11/A9/D9 P12/A10/D10
P0
52
53
51
14
13
12
1
0
P53/TA1IN
P55/TA2IN/KI
P54/TA2OUT/KI
4/A12/D12 P15/A13/D13 P16/A14/D14 P17/A15/D15 P20/A0/D0 P21/A1/D1 P22/A2/D2 P23/A3/D3
P1
P13/A11/D11
47
50
49
48
46
17
19
16
15
18
P47
P46
P51/TA0IN
P52/TA1OUT
P50/TA0OUT
42
43
45
20
P45
41
44
40
P24/A4/D4
39
P25/A5/D5
38
P26/A6/D6
37
P27/A7/D7
36
P30/WEL
35
P31/WEH
34
P32/ALE
33
P33/HLDA
32
Vss
31
E/RDE
30
XOUT
29
IN
X
28
RESET
27
CNVSS
26
BYTE
25
P40/HOLD
22
21
24
23
P44
P43
P42/φ1
P41/RDY
Outline 80P6N-A
1
MITSUBISHI MICROCOMPUTERS
M37735EHBXXXFP
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
PROM VERSION OF M37735MHBXXXFP
Data Bus(Even)
Data Bus(Odd)
M37735EHBFS
BYTE
selection input
External data bus width
REF
V
Reference
voltage input
CC
AV
SS
AV
(0V)
CNVss
SS
V
(0V)
CC
V
Instruction Register(8)
Data Buffer DB
H
(8)
Data Buffer DBL(8)
0
Instruction Queue Buffer Q
Instruction Queue Buffer Q
Instruction Queue Buffer Q2(8)
(8)
1
(8)
Incrementer(24)
Program Address Register PA(24)
Data Address Register DA(24)
Incrementer/Decrementer(24)
Program Counter PC(16)
Program Bank Register PG(8)
Data Bank Register DT(8)
Input Butter Register IB(16)
Address Bus
UART2(9)
UART1(9)
A-D Converter(10)
UART0(9)
P0(8)
P1(8)
P2(8)
P4(8) P3(4)
Input/Output
port P0
Input/Output
port P1
Input/Output
port P2
Input/Output
port P3
Input/Output
port P4
Processor Status Register PS(11)
Direct Page Register DPR(16)
RESET
Reset input
Stack Pointer S(16)
Index Register Y(16)
CIN
X
COUT
X
Index Register X(16)
Accumulatcr B(16)
E
Enable output
OUT
X
Clock output
IN
X
Clock input
Clock Generating Circuit
Accumulator A(16)
Arithmetic Logic
M37735EHBXXXFP BLOCK DIAGRAM
Unit(16)
Timer TB2(16)
Watchdog Timer
Timer TA2(16)
Timer TA3(16)
Timer TA4(16)
RAM
PROM
Timer TB0(16)
Timer TB1(16)
Timer TA1(16)
Timer TA0(16)
3968 bytes
124 Kbytes
X
COUT
X
CIN
P5(8)
P6(8)
P7(8)
P8(8)
Input/Output
port P5
Input/Output
port P6
Input/Output
port P7
Input/Output
port P8
2
MITSUBISHI MICROCOMPUTERS
M37735EHBXXXFP
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
FUNCTIONS OF M37735EHBXXXFP
Number of basic instructions 103
Instruction execution time 160 ns (the fastest instruction at external clock 25 MHz frequency)
Memory size
Input/Output ports
Multi-function timers
Serial I/O (UART or clock synchronous serial I/O) ✕ 3
A-D converter 10-bit ✕ 1 (8 channels)
Watchdog timer 12-bit ✕ 1
Interrupts
Clock generating circuit
Supply voltage 5 V ± 10%
Power dissipation 47.5 mW (at external clock 25 MHz frequency)
Input/Output characteristic
Memory expansion Maximum 1 Mbytes
Operating temperature range –20 to 85 °C
Device structure CMOS high-performance silicon gate process
Package
Parameter Functions
PROM 124 Kbytes
RAM 3968 bytes
P0 – P2, P4 – P8 8-bit ✕ 8
P3 4-bit ✕ 1
TA0, TA1, TA2, TA3, TA4 16-bit ✕ 5
TB0, TB1, TB2 16-bit ✕ 3
3 external types, 16 internal types
Each interrupt can be set to the priority level (0 – 7.)
2 circuits built-in (externally connected to a ceramic resonator or a
quartz-crystal oscillator)
Input/Output voltage 5 V
Output current 5 mA
M37735EHBXXXFP 80-pin plastic molded QFP (80P6N-A)
M37735EHBFS 80-pin ceramic LCC (with a window) (80D0)
PROM VERSION OF M37735MHBXXXFP
M37735EHBFS
3
MITSUBISHI MICROCOMPUTERS
M37735EHBXXXFP
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
PIN DESCRIPTION
Pin Name Input/Output Functions
Vcc, Power source Apply 5 V ± 10% to Vcc and 0 V to Vss.
Vss
CNVss CNVss input Input This pin controls the processor mode. Connect to Vss for the single-chip mode and the memory
RESET
Reset input Input When “L” level is applied to this pin, the microcomputer enters the reset state.
XIN Clock input Input
XOUT Clock output Output
E
BYTE
Enable output Output This pin functions as the enable signal output pin which indicates the access status in the internal
External data
Input In the memory expansion mode or the microprocessor mode, this pin determines whether the
bus width
selection input
AVcc, Analog power Power source input pin for the A-D converter. Externally connect AVcc to Vcc and AVss to Vss.
AVss source input
V
REF Reference Input This is reference voltage input pin for the A-D converter.
voltage input
0 – P07 I/O port P0 I/O In the single-chip mode, port P0 becomes an 8-bit I/O port. An I/O direction register is available so
P0
0 – P17 I/O port P1 I/O In the single-chip mode, these pins have the same functions as port P0. When the BYTE pin is set
P1
0 – P27 I/O port P2 I/O In the single-chip mode, these pins have the same functions as port P0. In the memory expansion
P2
0 – P33 I/O port P3 I/O In the single-chip mode, these pins have the same function as port P0. In the memory expansion
P3
0 – P47 I/O port P4 I/O In the single-chip mode, these pins have the same functions as port P0. In the memory expansion
P4
0 – P57 I/O port P5 I/O In addition to having the same functions as port P0 in the single-chip mode, these pins also
P5
0 – P67 I/O port P6 I/O In addition to having the same functions as port P0 in the single-chip mode, these pins also
P6
0 – P77 I/O port P7 I/O In addition to having the same functions as port P0 in the single-chip mode, these pins function as
P7
0 – P87 I/O port P8 I/O In addition to having the same functions as port P0 in the single-chip mode, these pins also
P8
expansion mode, and to Vcc for the microprocessor mode.
These are pins of main-clock generating circuit. Connect a ceramic resonator or a quartzcrystal oscillator between X
IN and XOUT. When an external clock is used, the clock source should
be connected to the XIN pin, and the XOUT pin should be left open.
bus. In the memory expansion mode or the microprocessor mode, this pin functions as the RDE
signal output pin.
external data bus has an 8-bit width or a 16-bit width. The data bus has a 16-bit width when “L”
signal is input and an 8-bit width when “H” signal is input.
that each pin can be programmed for input or output. These ports are in the input mode when
reset.
In the memory expansion mode or the microprocessor mode, these pins output CS0 – CS4, RSMP
signals, and address (A16, A17).
to “L” in the memory expansion mode or the microprocessor mode and external data bus has a
16-bit width, high-order data (D
8 – D15) is input/output or an address (A8 – A15) is output. When
the BYTE pin is “H” and an external data bus has an 8-bit width, only address (A8 – A15) is output.
mode or the microprocessor mode, low-order data (D
(A0 – A7) is output .
mode or the microprocessor mode, WEL, WEH, ALE, and HLDA signals are output.
___ ___ ____
mode or the microprocessor mode, P40, P41, and P42 become HOLD and RDY input pins, and a
clock
φ1 output pin, respectively. Functions of the other pins are the same as in the single-chip
mode. However, in the memory expansion mode, P42 can be selected as an I/O port.
function as I/O pins for timers A0 to A3 and input pins for key input interrupt input (KI0 – KI3 ).
function as I/O pins for timer A4, input pins for external interrupt input (INT0 – INT2) and input pins
for timers B0 to B2. P67 also functions as a sub-clock φSUB output pin.
input pins for A-D converter. P7
P7
7 have the function as the output pin (XCOUT) and the input pin (XCIN) of the sub-clock (32 kHz)
oscillation circuit, respectively. When P7
2 to P75 also function as I/O pins for UART2. Additionally, P76 and
6 and P77 are used as the XCOUT and XCIN pins, connect
a resonator or an oscillator between the both.
function as I/O pins for UART 0 and UART 1.
PROM VERSION OF M37735MHBXXXFP
0 – D7) is input/output or an address
M37735EHBFS
___
___ ___ ____
____ ___
__ __
___ ___
4
MITSUBISHI MICROCOMPUTERS
M37735EHBXXXFP
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
PIN DESCRIPTION (EPROM MODE)
Pin
VCC, VSS
CNVSS
BYTE
____
RESET
XIN
XOUT
_
E
AVCC, AVSS
VREF
P00 – P07
P10 – P17
P20 – P27
P30
P31 – P33
P40 – P47
P50 – P57
P60 – P67
P70 – P77
P80 – P87
Power supply
VPP input
VPP input
Reset input
Clock input
Clock output
Enable output
Analog supply input
Reference voltage input
Address input (A0 – A7)
Address input (A8 – A15)
Data I/O (D0 – D7)
Address input (A16)
Input port P3
Input port P4
Control signal input
Input port P6
Input port P7
Input port P8
Name
Input/Output
Input
Input
Input
Input
Output
Output
Input
Input
Input
I/O
Input
Input
Input
Input
Input
Input
Input
PROM VERSION OF M37735MHBXXXFP
Functions
Supply 5V±10% to VCC and 0V to VSS.
Connect to VPP when programming or verifing.
Connect to VPP when programming or verifing.
Connect to VSS.
Connect a ceramic resonator between XIN and XOUT.
Keep open.
Connect AVCC to VCC and AVSS to VSS.
Connect to VSS.
Port P0 functions as the lower 8 bits address input (A0 – A7).
Port P1 functions as the higher 8 bits address input (A8 – A15).
Port P2 functions as the 8 bits data bus(D0 – D7).
P30 functions as the most significant bit address input (A16).
Connect to VSS.
Connect to VSS.
P50, P51 and P52 function as PGM, OE and CE input pins respectively.
Connect P5
Connect to VSS.
Connect to VSS.
Connect to VSS.
3, P54, P55 and P56 to VCC. Connect P57 to VSS.
___ __ __
M37735EHBFS
5
MITSUBISHI MICROCOMPUTERS
M37735EHBXXXFP
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
PROM VERSION OF M37735MHBXXXFP
M37735EHBFS
BASIC FUNCTION BLOCKS
The M37735EHBXXXFP has the same functions as the
M37735MHBXXXFP except for the following:
(1) The built-in ROM is PROM.
(2) The status of bit 3 of the oscillation circuit control register 1 (address
6F
16) at a reset is different.
(3) The usage condition of bit 3 of the oscillation circuit control register
1 is different.
(4) Part of the processor mode selection method is different.
Accordingly, refer to the basic function blocks description in the
M37735MHBXXXFP except for Figure 1 (bit configuration of
oscillation circuit control register 1), Figure 3 (microcomputer internal
status during reset), and Table 1 (microprocessor mode selection
method).
In the M37735EHBXXXFP, bit 3 of the oscillation circuit control register
1 must be “0”. (Refer to Figure 1.) Bit 3 is “1” at a reset. Accordingly,
76543210
Oscillation circuit control register 1
CC
0
CC
1
CC
00
2
Main clock division selection bit
0 : Main clock is divided by 2.
1 : Main clock is not divided by 2.
Main clock external input selection bit
0 : Main-clock oscillation circuit is operating by itself.
Watchdog timer is used at returning from STP state.
1 : Main-clock is input externally.
Watchdog timer is not used at returning from STP state.
Sub clock external input selection bit
0 : Sub-clock oscillation circuit is operating by itself.
Port P7
Watchdog timer is used at returning from STP state.
1 : Sub-clock is input externally.
Port P7
Watchdog timer is not used at returning from STP state.
0 : Always “0” (This bit is “1” at reset, so that write this bit to “0”.)
0 : Always “0” (However, writing data “55
Clock prescaler reset bit
write “0” to bit 3 in the single-chip mode after reset.
Figure 2 shows how to write data in oscillation circuit control register
1.
In the M37735EHBXXXFP, the microprosessor mode cannot be
selected by connecting the CNV
SS pin to VCC. Connect the CNVSS
pin to VSS and start the microcomputer’s operating from the singlechip mode.
Table 1. Relationship between CNVSS pin input level and processor
modes
CNV
SS
VSS
Mode
· Single-chip
· Memory expansion
· Microprocessor
Description
Single-chip mode upon starting
after reset. Each mode can be
selected by changing the
processor mode bits by software.
Address
6F
16
Note. Write to the oscillation circuit control
register 1 as the flow shown in Figure 2.
6
functions as X
6
functions as I/O port.
COUT
pin.
16
” shown in Figure 2 is possible.)
Fig. 1 Bit configuration of oscillation circuit control register 1 (corresponding to Figure 63 in data sheet “M37735MHBXXXFP”)
Writing data “55
16
” (LDM instruction)
Next instruction
Writing data “8016” (LDM instruction)
Reset clock prescaler
Writing data “0Y
CC
• How to reset clock prescaler • How to write in CC
16
” (LDM instruction)
2
to CC0 selection bits
2
to CC0 selection bits
Note. “Y” is the sum of bits to be set. For example, when
setting bits 2 and 1 to “1”, “Y” becomes “6”.
Fig. 2 How to write data in oscillation circuit control register 1 (indentical with Figure 64 in data sheet “M37735MHBXXXFP”)
6
MITSUBISHI MICROCOMPUTERS
M37735EHBXXXFP
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
PROM VERSION OF M37735MHBXXXFP
M37735EHBFS
Address
Port P0 direction register
Port P1 direction register
Port P2 direction register
Port P3 direction register
Port P4 direction register
Port P5 direction register
Port P6 direction register
Port P7 direction register
Port P8 direction register
A-D control register 0
A-D control register 1
UART 0 transmit/receive mode register
UART 1 transmit/receive mode register
UART 0 transmit/receive
control register 0
UART 1 transmit/receive
control register 0
UART 0 transmit/receive
control register 1
UART 1 transmit/receive
control register 1
Count start flag
One- shot start flag
Up-down flag
Timer A0 mode register
Timer A1 mode register
Timer A2 mode register
Timer A3 mode register
Timer A4 mode register
Timer B0 mode register
Timer B1 mode register
Timer B2 mode register
Processor mode register 0
Processor mode register 1
Watchdog timer register
(0416)
(0516)
(0816)
(0916)
(0C16)
(0D16)
(1016)
(1116)
(1416)
(1E16)
(1F16)
(3016)
(3816)
(3416)
(3C16)
(3516)
(3D16)
(4016)
(4216)
(4416)
(5616)
(5716)
(5816)
(5916)
(5A16)
(5B16)
(5C16)
(5D16)
(5E16)
(5F16)
(6016)
•••
•••
•••
•••
•••
•••
•••
•••
•••
0000
•••
0
•••
•••
•••
•••
0000
•••
0000
•••
0000
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
001
•••
001 00 00
•••
•••
•••
FFF
00
16
00
16
00
16
0000
00
16
00
16
00
16
00
16
00
16
0
???
11
00
16
00
00
16
0000
1000
0010
000010
10
16
00
000 00
00
16
00
16
00
16
00
16
00
16
00
16
0001 00 00
00 00
00
16
16
Watchdog timer frequency selection flag
Memory allocation control register
UART2 transmit/receive mode register
UART2 transmit/receive control register 0
UART2 transmit/receive control register 1
Oscillation circuit control register 0
Port function control register
Serial transmit control register
Oscillation circuit control register 1
A-D/UART2 trans./rece. interrupt control register
UART 0 transmission interrupt control register
UART 0 receive interrupt control register
UART 1 transmission interrupt control register
UART 1 receive interrupt control register
Timer A0 interrupt control register
Timer A1 interrupt control register
Timer A2 interrupt control register
Timer A3 interrupt control register
Timer A4 interrupt control register
Timer B0 interrupt control register
Timer B1 interrupt control register
Timer B2 interrupt control register
INT
0
interrupt control register
INT
1
interrupt control register
INT
2
/Key input interrupt control register
Processor status register (PS)
Program bank register (PG)
H
Program counter (PC
Program counter (PC
0
Direct page register (DPR)
Data bank register (DT)
)
L
)
Address
(6116)
(6316)
(6416)
(6816)
(69
16)•••
(6C16)
(6D16)
(6E16)
(6F16)
(7016)
(7116)
(7216)
(7316)
(7416)
(7516)
(7616)
(7716)
(7816)
(7916)
(7A16)
(7B16)
(7C16)
(7D16)
(7E16)
(7F16)
•••
0 0
•••
•••
0 000000
•••
0 0100000
0
00
0 01000
0
•••
0
•••
00
00
•••
0
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
0
•••
0
•••
0
•••
?000
?
Content of FFFF
Content of FFFE
0000
000
00
1
0
00
16
1
0
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0
0
0
0
0
0
0
00
16
00
16
00
16
0
0
0
001
00
000
001
000
000
000
000
1??
16
16
Fig. 3 Microcomputer internal status during reset
Contents of other registers and RAM are undefined during reset. Initialize them by software.
7
MITSUBISHI MICROCOMPUTERS
M37735EHBXXXFP
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
PROM VERSION OF M37735MHBXXXFP
M37735EHBFS
EPROM MODE
The M37735EHBXXXFP features an EPROM mode in addition to its
normal modes. When the RESET signal level is “L”, the chip
automatically enters the EPROM mode. Table 2 list the
correspondence between pins and Figure 4 shows the pin
connections in the EPROM mode.
The EPROM mode is the 1M mode for the EPROM that is equivalent
to the M5M27C101K.
When in the EPROM mode, ports P0, P1, P2, P3
CNV
SS, and BYTE are used for the EPROM (equivalent to the
Table 2 Pin function in EPROM mode
M37735EHBXXXFP
VCC
VPP
VSS
Address input
Data I/O
__
CE
__
OE
___
PGM
_____
VCC
CNVSS, BYTE
SS
V
Ports P0, P1, P30
Port P2
P52
P51
P50
0, P50, P51, P52,
M5M27C101K
VCC
VPP
VSS
A0 – A16
D0 – D7
__
CE
__
OE
___
PGM
M5M27C101K).
When in this mode, the built-in PROM can be programmed or read
from using these pins in the same way as with the M5M27C101K.
This chip does not have Device Identifier Mode, so that set the
corresponding program algorithm. The program area should specify
address 01000
16 – 1FFFF16.
Connect the clock which is either ceramic resonator or external clock
to X
IN pin and XOUT pin.
8
MITSUBISHI MICROCOMPUTERS
M37735EHBXXXFP
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
PROM VERSION OF M37735MHBXXXFP
M37735EHBFS
0
1
A
A
1
RTS
/
1
1
1
1
D
1
D
0
X
X
CS
/CLK
5
P8
↔
↔
φSUB
/
IN
/TB2
7
CS
/
/
/R
/T
1
6
7
0
P0
P8
P8
P0
↔
↔
↔
↔
↔
62
61
58
59
60
M37735EHBXXXFP
3
↔
IN
/TB1
6
P6
4
↔
IN
/TB0
5
P6
5
↔
2
INT
/
4
P6
6
↔
1
INT
/
3
P6
7
0
INT
/
2
P6
CTS
/
4
P8
↔
63
64
65
↔ P83/TXD
0
66
↔ P82/RXD0/CLKS
0
67
↔
P81/CLK
0
68
P80/
CTS
0
/
V
CC
RTS
AD
0
TRG
/CLKS
V
AV
V
AV
V
COUT
/TXD
CTS
REF
CIN
↔
1
69
CC
70
CC
71
→
72
SS
73
SS
74
→ P77/AN7/X
75
↔ P76/AN6/X
76
↔ P75/AN5/
2
77
↔ P74/AN4/RXD
2
78
↔ P73/AN3/CLK
2
79
↔ P72/AN2/
2
80
↔ P71/AN
1
1
2
↔
0
/AN
0
P7
P6
6
9
4
A
4
CS
/
4
P0
↔
56
9
↔
OUT
/TA4
0
P6
5
A
RSMP
/
5
P0
↔
55
10
↔
3
KI
/
IN
/TA3
7
P5
A
16
/A
6
P0
↔
54
11
↔
2
KI
/
OUT
/TA3
6
P5
7
A
17
/A
7
P0
↔
53
12
↔
1
KI
/
IN
/TA2
5
P5
8
A
8
/D
8
/A
0
P1
↔
52
13
↔
0
KI
/
OUT
/TA2
4
P5
A
9
/D
9
/A
1
P1
↔
51
14
↔
IN
/TA1
3
P5
10
A
10
/D
10
/A
2
P1
↔
50
15
↔
OUT
/TA1
2
P5
CE
11
A
11
/D
11
/A
3
P1
↔
49
16
↔
IN
/TA0
1
P5
OE
48
17
2
3
A
A
2
3
CS
CS
/
/
2
3
P0
P0
↔
57
8
↔
↔
IN
/TA4
1
P6
12
A
12
/D
12
/A
4
P1
↔
↔
OUT
/TA0
0
P5
PGM
47
18
13
A
13
/D
13
/A
5
P1
↔
↔
7
P4
46
19
14
A
14
/D
14
/A
6
P1
↔
↔
6
P4
15
A
15
/D
15
/A
7
P1
↔
45
20
↔
5
P4
44
21
0
D
0
/D
0
/A
0
P2
↔
↔
4
P4
22
1
D
1
/D
1
/A
1
P2
↔
43
↔
3
P4
2
/D
2
/A
2
P2
42
23
↔
φ1
2
D
↔
/
2
P4
3
D
3
/D
3
/A
3
P2
↔
41
24
↔
RDY
/
1
P4
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
↔P24/A4/D
↔P25/A5/D
↔P26/A6/D
↔P27/A7/D
↔P30/
WEL
↔P31/
WEH
↔P32/ALE
↔P33/
HLDA
V
SS
→E/
RDE
→ X
OUT
← X
IN
←
RESET
CNV
SS
← BYTE
↔P40/
HOLD
4
5
6
7
D
4
D
5
D
6
D
7
A
16
V
SS
∗
V
PP
Fig. 4 Pin connection in EPROM mode
Outline 80P6N-A
✽ : Connect to ceramic oscillation circuit.
: It is used in the EPROM mode.
9
MITSUBISHI MICROCOMPUTERS
M37735EHBXXXFP
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
PROM VERSION OF M37735MHBXXXFP
M37735EHBFS
FUNCTION IN EPROM MODE
1M mode (equivalent to the M5M27C101K)
Reading
To read the EPROM, set the CE and OE pins to a “L” level. Input the
address of the data (A
to the I/O pins D
__ __
the CE or OE pins are in the “H” state.
0 – D7. The data I/O pins will be floating when either
__ __
0 – A16) to be read, and the data will be output
Programming
Programming must be performed in 8 bits by a byte program. To
program to the EPROM, set the CE pin to a “L” level and the OE pin to
a “H” level. The CPU will enter the programming mode when 12.5 V
is applied to the V
with pins A
– D7. Set the PGM pin to a “L” level to being programming.
PP pin. The address to be programmed to is selected
0 – A16, and the data to be programmed is input to pins D0
___
__ __
Erasing
To erase data on this chip, use an ultraviolet light source with a 2537
Angstrom wave length. The minimum radiation power necessary for
erasing is 15 J/cm
2
.
Programming operation
To program the M37735EHBXXXFP, first set VCC = 6 V, VPP = 12.5
V, and set the address to 01000
pulse, check that the data can be read, and if it cannot be read OK,
repeat the procedure, applying a 0.2 ms programming pulse and
checking that the data can be read until it can be read OK. Record
the accumulated number of pulse applied (X) before the data can be
read OK, and then write the data again, applying a further once this
number of pulses (0.2 ✕ X ms).
When this series of programming operations is complete, increment
the address, and continue to repeat the procedure above until the
last address has been reached.
Finally, when all addresses have been programmed, read with V
V
PP = 5 V (or VCC = VPP = 5.5 V).
Table 2. I/O signal in each mode
__CE__OE___
Pin
Mode
Read-out
Output
Disable
Programming
Programming
Verify
Program Disable
VIL
VIL
VIH
VIL
VIL
VIH
Note 1 : An X indicates either V
16. Apply a 0.2 ms programming
PGM VPP VCC Data I/O
VIL
X
5 V
5 V
VIH
X
5 V
5 V
X
X
5 V
5 V
VIH
VIL
12.5 V
6 V
VIL
VIH
12.5 V
6 V
VIH
VIH
12.5 V
6 V
IL or VIH.
CC =
Output
Floating
Floating
Input
Output
Floating
Programming operation (equivalent to the M5M27C101K)
AC ELECTRICAL CHARACTERISTICS (Ta = 25 ± 5 °C, VCC = 6 V ± 0.25 V, VPP = 12.5 ± 0.3 V, unless otherwise noted)
Symbol Parameter Test conditions
tAS
tOES
tDS
tAH
tDH
tDFP
tVCS
tVPS
tPW
tOPW
tCES
tOE
Address setup time
__
OE setup time
Data setup time
Address hold time
Data hold time
Output enable to output float delay
VCC setup time
VPP setup time
___
PGM pulse width
___
PGM over program pulse width
__
CE setup time
Data valid from OE
__
Min.
0.19
0.19
Limits
Typ.
2
2
2
0
2
0
2
2
0.2
2
Max.
130
0.21
5.25
150
Unit
µs
µs
µs
µs
µs
ns
µs
µs
ms
ms
µs
ns
10
MITSUBISHI MICROCOMPUTERS
M37735EHBXXXFP
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
AC waveforms
V
VIH/VOH
VIL/VOL
VPP
VCC
VCC +1
V
VIH
VIH
VIH
IH
VIL
CC
VIL
VIL
VIL
ADDRESS
DATA
PP
V
VCC
CE
PGM
OE
tAS
tVPS
tVCS
tCES
PROGRAM VERIFY
DATA SET
DATA OUTPUT VALID
tDH tDS
tOES tOE
tPW
tOPW
PROM VERSION OF M37735MHBXXXFP
M37735EHBFS
tAH
tDFP
Programming algorithm flow chart
INCREMENT ADDR
START
ADDR=FIRST LOCATION
V
CC
PP
=12.5 V
V
X=0
PROGRAM ONE PULSE OF 0.2 ms
X=X+1
X=25?
NO
FAIL
NO
VERIFY
BYTE
PROGRAM PULSE OF
0.2X ms DURATION
LAST ADDR?
V
CC=VPP
VERIFY
ALL BYTE
DEVICE PASSED
Test conditions for A.C. characteristics
Input voltage : VIL = 0.45 V, VIH = 2.4 V
Input rise and fall times (10 % – 90 %) : ≤ 20 ns
Reference voltage at timing measurement : Input, Output
“L” = 0.8 V, “H” = 2 V
=6.0 V
YES
PASS
=*5.0 V
PASS
YES
FAIL
VERIFY
BYTE
DEVICE
FAILED
PASS
FAIL
DEVICE
FAILED
*4.5 V ≤ VCC = VPP ≤ 5.5 V
11
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