8-Bit Output For Use in
Microprocessor-Based Systems
D
Very High-Speed SNAP! Pulse
Programming
D
Power-Saving CMOS Technology
D
3-State Output Buffers
D
400-mV Minimum DC Noise Immunity With
Standard TTL Loads
D
Latchup Immunity of 250 mA on All Input
and Output Pins
D
No Pullup Resistors Required
D
Low Power Dissipation (VCC = 5.5 V)
– Active...165 mW Worst Case
– Standby...0.55 mW Worst Case
(CMOS-Input Levels)
D
Temperature Range Options
description
TMS27C010A 131072 BY 8-BIT UV ERASABLE
TMS27PC010A 131072 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS1 10C – NOVEMBER 1990 – REVISED SEPTEMBER 1997
J PACKAGE
(TOP VIEW)
32
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
V
A16
A15
A12
DQ0
DQ1
DQ2
GND
5
6
7
8
9
10
11
12
13
1
PP
2
3
4
5
A7
6
A6
7
A5
8
A4
9
A3
10
A2
11
A1
12
A0
13
14
15
16
FM PACKAGE
(TOP VIEW)
A12
A15
A16
3213231
430
14
15 16 17 18 19
PP
V
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
CC
V
V
CC
PGM
NC
A14
A13
A8
A9
A1 1
G
A10
E
DQ7
DQ6
DQ5
DQ4
DQ3
PGM
NC
20
29
28
27
26
25
24
23
22
21
A14
A13
A8
A9
A1 1
G
A10
E
DQ7
The TMS27C010A series are 131072 by 8-bit
(1048576-bit), ultraviolet (UV) light erasable,
electrically programmable read-only memories
(EPROMs).
The TMS27PC010A series are 131 072 by 8-bit
(1048576-bit), one-time programmable (OTP)
electrically programmable read-only memories
(PROMs).
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
DQ1
DQ2
DQ3
DQ4
DQ5
GND
PIN NOMENCLATURE
A0–A16Address Inputs
DQ0–DQ7 Inputs (programming)/Outputs
E
GOutput Enable
GNDGround
NCNo Internal Connection
PGM
V
CC
V
PP
†
Only in program mode
Chip Enable
Program
5-V Power Supply
13-V Power Supply
Copyright 1997, Texas Instruments Incorporated
DQ6
†
1
TMS27C010A 131072 BY 8-BIT UV ERASABLE
TMS27PC010A 131072 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS1 10C – NOVEMBER 1990 – REVISED SEPTEMBER 1997
description (continued)
These devices are fabricated using power-saving CMOS technology for high speed and simple interface with
MOS and bipolar circuits. All inputs (including program data inputs) can be driven by Series 74 TTL circuits
without the use of external pullup resistors. Each output can drive one Series 74 TTL circuit without external
resistors.
The TMS27C010A EPROM is offered in a dual-in-line ceramic package (J suffix) designed for insertion in
mounting hole rows on 15,2-mm (600-mil) centers. The TMS27C010A is also offered with two choices of
temperature ranges, 0°C to 70°C (JL suffix) and –40°C to 85°C (JE suffix). See Table 1.
The TMS27PC010A OTP PROM is offered in a 32-pin, plastic leaded chip carrier package using 1,25-mm
(50-mil) lead spacing (FM suffix). The TMS27PC010A is offered with two choices of temperature ranges, 0°C
to 70°C (FML suffix) and – 40°C to 85°C (FME suffix). See Table 1.
Table 1. Temperature Range Suffixes
EPROM
AND
OTP PROM
TMS27C010A-xxxJLJE
TMS27PC010A-xxxFMLFME
SUFFIX FOR OPERATING FREE-
AIR TEMPERATURE RANGES
0°C to 70°C– 40°C to 85°C
These EPROMs and OTP PROMs operate from a single 5-V supply (in the read mode), thus are ideal for use
in microprocessor-based systems. One other 13-V supply is needed for programming. All programming signals
are TTL level. These devices are programmable using the SNAP! Pulse programming algorithm. The SNAP!
Pulse programming algorithm uses a V
of 13 V and a VCC of 6.5 V for a nominal programming time of thirteen
PP
seconds. For programming outside the system, existing EPROM programmers can be used. Locations can be
programmed singly, in blocks, or at random.
operation
The seven modes of operation are listed in Table 2. The read mode requires a single 5-V supply. All inputs are
TTL level except for V
FUNCTION
EV
GV
PGMXXXV
V
PP
V
CC
A9XXXXXXV
A0XXXXXXV
DQ0–DQ7Data OutHi-ZHi-ZData InData OutHi-Z
†
X can be VIL or VIH.
‡
VH = 12 V ± 0.5 V.
READ
IL
IL
V
CC
V
CC
during programming (13 V for SNAP! Pulse), and 12 V on A9 for signature mode.
PP
Table 2. Operation Modes
†
MODE
OUTPUT
DISABLE
V
IL
V
IH
V
CC
V
CC
STANDBYPROGRAMMINGVERIFY
V
IH
XV
V
CC
V
CC
V
IL
IH
IL
V
PP
V
CC
V
IL
V
IL
V
IH
V
PP
V
CC
PROGRAM
INHIBIT
V
IH
XV
XX
V
PP
V
CC
SIGNATURE MODE
‡
H
IL
CODE
MFGDEVICE
97D6
V
IL
IL
V
CC
V
CC
‡
V
H
V
IH
2
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS27C010A 131072 BY 8-BIT UV ERASABLE
TMS27PC010A 131072 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS1 10C – NOVEMBER 1990 – REVISED SEPTEMBER 1997
read/output disable
When the outputs of two or more TMS27C010As or TMS27PC010As are connected in parallel on the same bus,
the output of any particular device in the circuit can be read with no interference from competing outputs of the
other devices. To read the output of a single device, a low-level signal is applied to the E
devices in the circuit should have their outputs disabled by applying a high level signal to one of these pins.
latchup immunity
Latchup immunity on the TMS27C010A and TMS27PC010A is a minimum of 250 mA on all inputs and outputs.
This feature provides latchup immunity beyond any potential transients at the P .C. board level when the devices
are interfaced to industry standard TTL or MOS logic devices. The input / output layout approach controls
latchup without compromising performance or packing density.
power down
and G pins. All other
Active I
100 µA by applying a high CMOS input on E
erasure (TMS27C010A)
Before programmig, the TMS27C010A EPROM is erased by exposing the chip through the transparent lid to
a high intensity UV light (wavelength 2537 Å). The recommended minimum exposure dose (UV intensity ×
exposure time) is 15-W⋅s/cm
lamp should be located about 2.5 cm above the chip during erasure. After erasure, all bits are in the high state.
Normal ambient light contains the correct wavelength for erasure, therefore, when using the TMS27C010A, the
window must be covered with an opaque label. After erasure (all bits in logic high state), logic lows are
programmed into the desired locations. A programmed low can be erased only by UV light.
initializing (TMS27PC010A)
The one-time programmable TMS27PC010A PROM is provided with all bits in the logic high state, then logic
lows are programmed into the desired locations. Logic lows programmed into an OTP PROM cannot be erased.
SNAP! Pulse programming
The TMS27C010A and TMS27PC010A are programmed using the TI SNAP! Pulse programming algorithm
illustrated by the flowchart in Figure 1, which programs in a nominal time of thirteen seconds. Actual
programming time varies as a function of the programmer used.
The SNAP! Pulse programming algorithm uses an initial pulse of 100 microseconds (µs) followed by a byte
verification to determine when the addressed byte has been successfully programmed. Up to 10 (ten) 100-µs
pulses per byte are provided before a failure is recognized.
The programming mode is achieved when V
(eight bits) on pins DQ0 through DQ7. Once addresses and data are stable, PGM
supply current can be reduced from 30 mA to 500 µA by applying a high TTL input on E and to
CC
2
. A typical 12-mW/cm2, filterless UV lamp erases the device in 21 minutes. The
. In this mode all outputs are in the high-impedance state.
= 13 V , VCC = 6.5 V , E = VIL, G = VIH. Data is presented in parallel
PP
is pulsed low.
More than one device can be programmed when the devices are connected in parallel. Locations can be
programmed in any order. When the SNAP! Pulse programming routine is complete, all bits are verified with
V
= VPP = 5 V ± 10%.
CC
program inhibit
Programming can be inhibited by maintaining a high level input on the E
program verify
Programmed bits can be verified with V
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
= 13 V when G = VIL, E = VIL, and PGM = VIH.
PP
or PGM pins.
3
TMS27C010A 131072 BY 8-BIT UV ERASABLE
TMS27PC010A 131072 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS1 10C – NOVEMBER 1990 – REVISED SEPTEMBER 1997
Start
Address = First Location
VCC = 6.5 V ± 0.25 V, VPP = 13 V ± 0.25 V
Program One Pulse = tw = 100 µs
Last
Address?
Yes
Address = First Location
X = 0
Increment
Address
Verify
One Byte
Pass
Fail
No
Increment Address
Program One Pulse = tw = 100 µs
No
X = 10?X = X + 1
Program
Mode
Interactive
Mode
No
VCC = VPP = 5 V ± 0.5 V
Last
Address?
YesYes
Compare
All Bytes
to Original
Data
Pass
Device Passed
Fail
Device Failed
Figure 1. SNAP! Pulse Programming Flowchart
Final
Verification
4
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
IDENTIFIER
†
TMS27C010A 131072 BY 8-BIT UV ERASABLE
TMS27PC010A 131072 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS1 10C – NOVEMBER 1990 – REVISED SEPTEMBER 1997
signature mode
The signature mode provides access to a binary code identifying the manufacturer and type. This mode is
activated when A9 (pin 26) is forced to 12 V. Two identifier bytes are accessed by toggling A0. All other
addresses must be held low. The signature code for these devices is 97D6. A0 low selects the manufacturer’s
code 97 (Hex), and A0 high selects the device code D6 (Hex), as shown in Table 3.
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to GND.
capacitance over recommended ranges of supply voltage and operating free-air temperature,
f = 1 MHz
C
I
C
O
‡
Capacitance measurements are made on sample basis only.
§
All typical values are at TA = 25
‡
PARAMETERTEST CONDITIONSMIN TYP§MAXUNIT
Input capacitanceVI = 0 V, f = 1 MHz48pF
Output capacitanceVO = 0 V, f = 1 MHz610pF
°C and nominal voltages.
switching characteristics over recommended ranges of operating conditions (see Notes 4 and 5)
TEST
t
t
t
t
t
¶
NOTES: 4. For all switching characteristics the input pulse levels are 0.4 V to 2.4 V. Timing measurements are made at 2 V for logic high and
Access time from address100120150200ns
a(A)
Access time from chip enable
a(E)
Output enable time from G
en(G)
Output disable time from G or
dis
E
, whichever occurs first
Output data valid time after
change of address, E
v(A)
whichever occurs first
Value calculated from 0.5-V delta to measured output level.
0.8 V for logic low (see Figure 2).
5. Common test conditions apply for t
, or G,
¶
¶
CL = 100 pF,
TTL load,
Input tr ≤ 20 ns,
Input tf ≤ 20 ns
except during programming.
dis
’27C010A-10
’27PC010A-10
MINMAXMINMAXMINMAXMINMAX
050050060060ns
0000ns
’27C010A-12
’27PC010A-12
100120150200ns
55557575ns
’27C010A-15
’27PC010A-15
’27C010A-20
’27PC010A-20
UNIT
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
7
TMS27C010A 131072 BY 8-BIT UV ERASABLE
TMS27PC010A 131072 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS1 10C – NOVEMBER 1990 – REVISED SEPTEMBER 1997
switching characteristics for programming: VCC = 6.5 V and VPP = 13 V (SNAP! Pulse), TA = 25°C
(see Note 4)
PARAMETERMINMAXUNIT
t
dis(G)
t
en(G)
NOTE 4: For all switching characteristics the input pulse levels are 0.4 V to 2.4 V. Timing measurements are made at 2 V for logic high and
timing requirements for programming
t
w(PGM)
t
su(A)
t
su(E)
t
su(G)
t
su(D)
t
su(VPP)
t
su(VCC)
t
h(A)
t
h(D)
Disable time, output disable time from G0130ns
Enable time, output enable time from G150ns
0.8 V for logic low (see the ac testing waveform).
MINNOMMAXUNIT
Pulse duration, programSNAP! Pulse programming algorithm95100105µs
Setup time, address2µs
Setup time, E2µs
Setup time, G2µs
Setup time, data2µs
Setup time, V
Setup time, V
Hold time, address0µs
Hold time, data2µs
PP
CC
2µs
2µs
8
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
A0–A16
DQ0–DQ7
PARAMETER MEASUREMENT INFORMATION
Output
Under Test
2.4 V
0.4 V
NOTES: A. CL includes probe and fixture capacitance.
B. The ac testing inputs are driven at 2.4 V for logic high and 0.4 V for logic low . Timing
measurements are made at 2 V for logic high and 0.8 V for logic low for both inputs
and outputs.
Figure 2. The ac Test Output Load Circuit and Waveform
E
G
Hi-ZHi-ZOutput Valid
2 V
0.8 V
Address Valid
t
a(A)
t
a(E)
TMS27C010A 131072 BY 8-BIT UV ERASABLE
TMS27PC010A 131072 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS1 10C – NOVEMBER 1990 – REVISED SEPTEMBER 1997
2.08 V
RL = 800 Ω
CL = 100 pF
(see Note A)
2 V
0.8 V
t
t
en(G)
t
v(A)
dis
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
Figure 3. Read-Cycle Timing
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
9
TMS27C010A 131072 BY 8-BIT UV ERASABLE
TMS27PC010A 131072 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS1 10C – NOVEMBER 1990 – REVISED SEPTEMBER 1997
PROGRAMMING INFORMATION
Program
A0–A16
t
su(A)
DQ0–DQ7
V
PP
V
CC
E
t
su(E)
PGM
G
†
t
and t
dis(G)
‡
13-V VPP and 6.5-V VCC for SNAP! Pulse programming.
are characteristics of the device but must be accommodated by the programmer.
NOTES: A. All linear dimensions are in inches (millimeters).
PINS**
MAX
A
MIN
MAX
B
MIN
MAX
C
MIN
B. This drawing is subject to change without notice.
C. This package can be hermetically sealed with a ceramic lid using glass frit.
D. Index point is provided on cap for terminal identification only on press ceramic glass frit seal only.
NARR
0.624(15,85) 0.624(15,85)
0.590(14,99) 0.590(14,99)
1.265(32,13) 1.265(32,13)
1.235(31,37) 1.235(31,37)
0.541(13,74) 0.598(15,19)
0.514(13,06) 0.571(14,50)
24
WIDE
NARR
0.624(15,85) 0.624(15,85)
0.590(14,99) 0.590(14,99)
1.465(37,21) 1.465(37,21)
1.435(36,45) 1.435(36,45)
0.541(13,74) 0.598(15,19)
0.514(13,06) 0.571(14,50)
28
WIDEWIDE
NARR
0.624(15,85) 0.624(15,85)
0.590(14,99) 0.590(14,99)
1.668(42,37) 1.668(42,37)
1.632(41,45) 1.632(41,45)
0.541(13,74) 0.598(15,19)
0.514(13,06) 0.571(14,50)
32
WIDE
NARR
0.624(15,85) 0.624(15,85)
0.590(14,99) 0.590(14,99)
2.068(52,53) 2.068(52,53)
2.032(51,61) 2.032(51,61)
0.541(13,74) 0.598(15,19)
0.514(13,06) 0.571(14,50)
4040084/B 04/95
40
12
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
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accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty . Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
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