Datasheet M27V512 Datasheet (SGS Thomson Microelectronics)

Page 1
M27V512
512 Kbit (64Kb x8) Low Voltage UV EPROM and OTP EPROM
LOW VOLTAGE READ OPERATION:
3V to 3.6V
FAST ACCESS TIME: 100ns
LOW POWER CONSUMPTION:
V
CC
M27V512
28
1
8 x 13.4mm
8
Q0-Q7
– Active Current 10mA at 5MHz – Standby Current 10µA
PROGRAMMING VOLTAGE: 12.75V ± 0.25V
PROGRAMMING TIME: 100µs/byte (typical)
ELECTRONIC SIGNATURE
– Manufacturer Code: 20h – Device Code: 3Dh
DESCRIPTION
The M27V512 is a low voltage 512 Kbit EPROM offered in the two ranges UV (ultra viloet erase) and OTP (one time programmable). It is ideally suited for microprocessor systems and is orga­nized as 65,536 by 8 bits.
The M27V512 operates in the read mode with a supply voltage as low as 3V. The decrease in op­erating power allows either a reduction of the size of the battery or an increase in the time between battery recharges.
The FDIP28W (window ceramic frit-seal package) has transparent lid which allows the user to ex­pose the chiptoultraviolet light to erase the bit pat­tern. A new pattern can then be written to the device by following the programming procedure.
For applications where the content is programmed only one time and erasure is not required, the M27V512 is offered in PDIP28, PLCC32 and TSOP28 (8 x 13.4 mm) packages.
Table 1. Signal Names
A0-A15 Address Inputs
28
1
FDIP28W (F) PDIP28 (B)
PLCC32 (K) TSOP28 (N)
Figure 1. Logic Diagram
16
A0-A15
E
GV
PP
Q0-Q7 Data Outputs E Chip Enable GV V V
PP
CC
SS
Output Enable Supply Voltage Ground
V
SS
AI00732B
1/16May 1998
Page 2
M27V512
Figure 2A. DIP Pin Connections
A15 V A12
A7 A6 A5 A4 A3 A2 A1 A0
Q0
Q2 SS
1 2 3 4 5 6 7 8 9 10 11 12 13 14
M27V512
28 27 26 25 24 23 22 21 20 19 18 17 16 15
AI01907
CC
A14 A13 A8 A9 A11 GV A10 E Q7 Q6 Q5Q1 Q4 Q3V
PP
Figure 2B. LCC Pin Connections
CC
A13
DU
32
DU
V
Q3
A14
Q4
25
Q5
A8 A9 A11 NC GV A10 E Q7 Q6
AI00733B
A15
A7
A12
A6 A5 A4 A3 A2
9 A1 A0
NC
Q0
Q1
Warning: NC = Not Connected, DU = Don’t Use
1
M27V512
17
Q2
SS
V
PP
Figure 2C. TSOP Pin Connections
GV
A11
A13 A14
V
A15 A12
PP
A9 A8
CC
A7 A6 A5 A4 A3
22
28
M27V512
1
78
21
15 14
AI00734B
A10 E Q7 Q6 Q5 Q4 Q3 V
SS
Q2 Q1 Q0 A0 A1 A2
DEVICE OPERATION
The operating modes of the M27V512 are listed in the Operating Modes table. A single power supply is required in the read mode. All inputs are TTL levels except for GVPPand 12V on A9 for Elec­tronic Signature.
Read Mode
The M27V512 has two control functions, both of which must be logically active in order to obtain data at the outputs. Chip Enable (E) is the power control and should be used for device selection. Output Enable (G) is the output control and should be used to gate data to the output pins, indepen­dent of device selection. Assuming that the ad­dresses are stable, the address access time (t
) is equal to the delay from E to output
AVQV
(t
). Datais availableatthe output afteradelay
ELQV
of t
from the falling edge of G, assuming that
GLQV
E has been low and the addresses have been sta­ble for at least t
AVQV-tGLQV
.
Standby Mode
The M27V512 has a standby mode which reduces the supply current from 10mA to 10µA with low voltage operation VCC≤ 3.6V, see Read Mode DC Characteristics table for details.The M27V512 is placed in the standby mode by applying a CMOS high signal to the E input. When in the standby mode, the outputs are in a high impedance state, independent of the GVPPinput.
2/16
Page 3
M27V512
Table 2. Absolute Maximum Ratings
(1)
Symbol Parameter Value Unit
T
A
T
BIAS
T
STG
(2)
V
IO
V
CC
(2)
V
A9
V
PP
Note: 1. Except for the rating ”Operating Temperature Range”, stresses above those listed in the Table ”Absolute Maximum Ratings” may
cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating condi­tions for extended periods may affect device reliability. Refer alsoto the STMicroelectronics SUREProgram and other relevant qua­lity documents.
2. Minimum DC voltage on Input or Output is –0.5V with possible undershoot to –2.0V for a period less than 20ns. Maximum DC voltage on Output is V
3. Depends on range.
Ambient Operating Temperature Temperature Under Bias –50 to 125 °C Storage Temperature –65 to 150 °C
Input or Output Voltage (except A9) –2 to 7 V Supply Voltage –2 to 7 V A9 Voltage –2 to 13.5 V Program Supply Voltage –2 to 14 V
+0.5V with possible overshoot to VCC+2V for a period less than 20ns.
CC
(3)
–40 to 125 °C
Table 3. Operating Modes
Mode E
Read Output Disable V Program
V Program Inhibit V Standby Electronic Signature
Note: X = VIHor VIL,VID= 12V ± 0.5V.
V
IL
IL
Pulse V
IL
IH
V
IH
V
IL
GV
V
PP
V
IL
V
IH
PP
PP
A9 Q0-Q7
X Data Out X Hi-Z XDataIn X Hi-Z
X X Hi-Z
V
IL
V
ID
Codes
Table 4. Electronic Signature
Identifier A0 Q7 Q6 Q5 Q4 Q3 Q2 Q1 Q0 Hex Data
Manufacturer’s Code Device Code
V
IL
V
IH
Two Line Output Control
Because EPROMs are usually used in larger memory arrays, the product features a 2 line con­trol function which accommodates the use of mul­tiple memory connection. The two line control function allows:
a. the lowest possible memory power dissipation, b. complete assurance that output bus contention
will not occur.
00100000 20h 00111101 3Dh
For the most efficient use of these two control lines, Eshouldbedecoded and used astheprima­ry device selecting function, while G should be made a common connection to all devices in the array and connected to the READ line from the system control bus. This ensures that all deselect­ed memory devices are intheir lowpower standby mode and that the output pins are only active when data is required from a particular memory device.
3/16
Page 4
M27V512
Table 5. AC Measurement Conditions
High Speed Standard
Input Rise and Fall Times 10ns 20ns Input Pulse Voltages 0 to 3V 0.4V to 2.4V Input and Output Timing Ref. Voltages 1.5V 0.8V and 2V
Figure 3. Testing Input Output Waveform
High Speed
3V
1.5V
0V
Standard
2.4V
0.4V
Table 6. Capacitance
Symbol Parameter Test Condition Min Max Unit
C
IN
C
OUT
Note: 1. Sampled only, not 100% tested.
Input Capacitance Output Capacitance
(1)
(TA=25°C, f = 1 MHz)
2.0V
0.8V
AI01822
Figure 4. AC Testing Load Circuit
1.3V
1N914
3.3k
DEVICE UNDER
TEST
C
L
CL= 30pF for HighSpeed CL= 100pF for Standard CLincludes JIG capacitance
V
V
IN
OUT
=0V
=0V
6pF
12 pF
OUT
AI01823B
System Considerations
The power switching characteristics of Advanced CMOS EPROMs require careful decoupling of the devices. The supply current, ICC, has three seg­ments that are of interest to the system designer: the standby current level, the active current level, and transient current peaks that are produced by the falling and rising edgesof E. The magnitude of the transient current peaks is dependent on the capacitive and inductive loading of the device at the output.
The associated transient voltage peaks can be suppressed by complying with the two line output
4/16
control and by properly selected decoupling ca­pacitors. It is recommended that a 0.1µF ceramic capacitor be used on every device between V
CC
and VSS. This should be a high frequency capaci­tor of low inherent inductance and should be placed as close to the device as possible. In addi­tion, a 4.7µF bulk electrolytic capacitor should be used between VCCand VSSfor every eight devic­es. The bulk capacitor should be located near the power supplyconnection point.The purpose of the bulk capacitor is to overcome the voltage drop caused by the inductive effects of PCB traces.
Page 5
M27V512
Table 7. Read Mode DC Characteristics
(1)
(TA= 0 to 70 °C or –40 to 85 °C; VCC= 3.3V ± 10%; VPP=VCC)
Symbol Parameter Test Condition Min Max Unit
I
I
I
CC
I
CC1
I
CC2
I V
V
IH
V V V
Note: 1. VCCmust be applied simultaneously with or before VPPand removed simultaneously or after VPP.
Table 8A. Read Mode AC Characteristics
Input Leakage Current
LI
Output Leakage Current
LO
Supply Current
E=V
IL
f = 5MHz, V
0V V
0V V
,G=VIL,I
Supply Current (Standby) TTL Supply Current (Standby) CMOS Program Current
PP
Input Low Voltage –0.3 0.8 V
IL
(2)
Input High Voltage 2 Output Low Voltage
OL
Output High Voltage TTL
OH
Output High Voltage CMOS
OH
2. Maximum DC voltage on Output is V
CC
+0.5V.
(1)
E>V
CC
I I
OH
OH
V
IN
CC
V
OUT
E=V
CC
IH
CC
OUT
3.6V
= 0mA,
– 0.2V,VCC≤ 3.6V
V
PP=VCC
I
= 2.1mA
OL
= –400µA = –100µAV
2.4 V – 0.7V
CC
±10 µA ±10 µA
10 mA
1mA 10 µA 10 µA
V
+1
CC
0.4 V
(TA= 0 to 70 °C or –40 to 85 °C; VCC= 3.3V ± 10%; VPP=VCC)
M27V512
Symbol Alt Parameter Test Condition
(3)
-100
Min Max Min Max
-120
V
V
Unit
t
AVQV
t
ELQV
t
GLQV
t
EHQZ
t
GHQZ
t
AXQX
Note: 1. VCCmust be applied simultaneously with or before VPPand removed simultaneously or after VPP.
2. Sampled only, not 100% tested.
3. Speed obtained with High Speed AC measurement conditions.
(2)
(2)
t
Address Valid to Output Valid E = VIL,G=V
ACC
t
Chip Enable Low to Output Valid
CE
t
Output Enable Low to Output Valid
OE
t
Chip Enable High to Output Hi-Z G = V
DF
t
Output Enable High to Output Hi-Z
DF
Address Transition to Output
t
OH
Transition
E=V
G=V E=V
E=V
,G=V
IL
IL
IL
IL
IL
IL
IL
0 30 0 35 ns 0 30 0 35 ns
00ns
100 120 ns 100 120 ns
45 45 ns
5/16
Page 6
M27V512
Table 8B. Read Mode AC Characteristics
(1)
(TA= 0 to 70 °C or –40 to 85 °C; VCC= 3.3V ± 10%; VPP=VCC))
M27V512
Symbol Alt Parameter Test Condition
Min Max Min Max
t
AVQV
t
ELQV
t
GLQV
t
EHQZ
t
GHQZ
t
AXQX
Note: 1. VCCmust be applied simultaneously with or before VPPand removed simultaneously or after VPP.
2. Sampled only, not 100% tested.
(2)
(2)
t
Address Valid to Output Valid
ACC
t
Chip Enable Low to Output Valid
CE
t
Output Enable Low to Output Valid E = V
OE
t
Chip Enable High to Output Hi-Z
DF
t
Output Enable High to Output Hi-Z
DF
Address Transition to Output
t
OH
Transition
E=V
E=V
,G=V
IL
G=V
G=V E=V
,G=V
IL
IL
IL
IL
IL
IL
IL
0 40 0 50 ns 0 40 0 50 ns
00ns
Figure 5. Read Mode AC Waveforms
A0-A15
tAVQV
VALID
tAXQX
VALID
Unit-150 -200
150 200 ns 150 200 ns
50 60 ns
E
tGLQV
G
tELQV
Q0-Q7
Programming
The M27V512 has been designed to be fully com­patible with the M27C512 and has the same elec­tronic signature. As a result the M27V512 can be programmed as the M27C512 on the same pro­gramming equipments applying 12.75V on V
PP
and 6.25V on VCCby the use of the same PRES­TO IIB algorithm. When delivered (and after each erasure for UV EPROM), all bits of the M27V512 are inthe ’1’ state. Data is introduced by selective­ly programming ’0’s into the desired bit locations. Although only ’0’s will be programmed, both ’1’s and ’0’s can be present in the data word. Theonly way tochange a ’0’to a ’1’is by die exposure to ul-
tEHQZ
tGHQZ
Hi-Z
AI00735B
traviolet light(UV EPROM). The M27V512 is in the programming mode when VPPinput is at 12.75V and E is pulsed toVIL. The data to be programmed is applied to 8 bits in parallel to the data output pins.The levels required for the address and data inputs are TTL. VCCis specified to be 6.25V ±
0.25V. The M27V512 can use PRESTO IIBProgramming
Algorithm that drastically reduces the program­ming time (typically less than 6 seconds). Never­theless to achieve compatibility with all programming equipments, PRESTO Program­ming Algorithm can be used as well.
6/16
Page 7
M27V512
Table 9. Programming Mode AC Characteristics
(1)
(TA=25°C; VCC= 6.25V ± 0.25V; VPP= 12.75V ± 0.25V)
Symbol Parameter Test Condition Min Max Unit
I
LI
I
CC
I
PP
V
IL
V
IH
V
OL
V
OH
V
ID
Note: 1. VCCmust be applied simultaneously with or before VPPand removed simultaneously or after VPP.
Input Leakage Current Supply Current 50 mA Program Current Input Low Voltage –0.3 0.8 V Input High Voltage 2 VCC+ 0.5 V Output Low Voltage Output High Voltage TTL IOH= –1mA 3.6 V A9 Voltage 11.5 12.5 V
Table 10. MARGIN MODE AC Characteristics
V
<= VIN<=V
IL
E=V
I
= 2.1mA
OL
(1)
IH
IL
±10 µA
50 mA
0.4 V
(TA=25°C; VCC= 6.25V ± 0.25V; VPP= 12.75V ± 0.25V
Symbol Alt Parameter Test Condition Min Max Unit
t
A9HVPH
t
VPHEL
t
A10HEH
t
A10LEH
t
EXA10X
t
EXVPX
t
VPXA9X
Note: 1. VCCmust be applied simultaneously with or before VPPand removed simultaneously or after V
t t
t
AS10VA10
t
AS10VA10
t
AH10
t t
VA9High to VPPHigh
AS9
VPPHigh to Chip Enable Low
VPS
Chip Enable Transition to V Chip Enable Transition to VPPTransition 2 µs
VPH
VPPTransition to VA9Transition
AH9
High to Chip Enable High (Set) Low to Chip Enable High (Reset)
Transition
A10
2 µs 2 µs 1 µs 1 µs 1 µs
2 µs
PP.
7/16
Page 8
M27V512
Table 11. Programming Mode AC Characteristics
(1)
(TA=25°C; VCC= 6.25V ± 0.25V; VPP= 12.75V ± 0.25V)
Symbol Alt Parameter Test Condition Min Max Unit
t
AVEL
t
QVEL
t
VCHEL
t
VPHEL
t
VPLVPH
t
ELEH
t
EHQX
t
EHVPX
t
VPLEL
t
ELQV
(2)
t
EHQZ
t
EHAX
Note: 1. VCCmust be applied simultaneously with or before VPPand removed simultaneously or after VPP.
2. Sampled only, not 100% tested.
t t
t
VCS
t
OES
t
PRT
t
t
t
OEH
t t
t
DFP
t
Address Validto Chip Enable Low 2 µs
AS
Input Valid to Chip Enable Low 2 µs
DS
VCCHigh to Chip Enable Low VPPHigh to Chip Enable Low
2 µs
2 µs VPPRise Time 50 ns Chip Enable Program Pulse Width (Initial) 95 105 µs
PW
Chip Enable High to Input Transition 2 µs
DH
Chip Enable High to VPPTransition VPPLow to Chip Enable Low
VR
Chip Enable Low to Output Valid 1 µs
DV
2 µs
2 µs
Chip Enable High to Output Hi-Z 0 130 ns Chip Enable High to Address Transition 0 ns
AH
Figure 6. MARGIN MODE AC Waveforms
V
CC
A8
A9
tA9HVPH tVPXA9X
GV
PP
E
A10 Set
A10 Reset
Note: A8 Highlevel = 5V; A9 High level = 12V.
tVPHEL
tA10HEH
tA10LEH
tEXVPX
tEXA10X
AI00736B
8/16
Page 9
Figure 7. Programming and Verify Modes AC Waveforms
M27V512
A0-A15
tAVEL
Q0-Q7
tQVEL
V
CC
tVCHEL
GV
PP
tVPHEL
E
Figure 8. Programming Flowchart
VCC= 6.25V, VPP= 12.75V
SET MARGIN MODE
n=0
E = 100µs Pulse
NO
NO
VERIFY
YES
Last
NO
Addr
YES
RESET MARGINMODE
CHECK ALL BYTES
1st: VCC=6V
2nd: VCC= 4.2V
++ Addr
YES
++n
=25
FAIL
DATA IN
AI00738B
tELEH
PROGRAM
VALID
tEHAX
DATA OUT
tEHQX
tELQV
tEHVPX
tVPLEL
VERIFY
tEHQZ
AI00737
PRESTO IIB Programming Algorithm
PRESTO IIB Programming Algorithm allows the whole array to be programmed with a guaranteed margin, in a typical time of 6.5 seconds. This can be achieved with STMicroelectronics M27V512 due to several design innovations described in the M27V512 datasheet to improve programming effi­ciency and to provide adequate marginfor reliabil­ity. Before starting the programming the internal MARGIN MODE circuit is set inorder to guarantee that each cell is programmed with enough margin. Then asequence of 100µs program pulses are ap­plied to each byte until a correct verify occurs. No overprogram pulses are applied since the verify in MARGIN MODE provides the necessary margin.
Program Inhibit
Programming of multiple M27V512s in parallel with different data is also easily accomplished. Ex­cept for E, all like inputs including GVPPof thepar­allel M27V512 may be common. A TTL low level pulse applied to a M27V512’s E input, with VPPat
12.75V, will programthat M27V512. A high level E input inhibits the other M27V512s from being pro­grammed.
Program Verify
A verify (read) should be performed on the pro­grammed bits to determinethat they were correct­ly programmed. The verify is accomplished with G at VIL. Data should be verified with t
ELQV
after the
falling edge of E.
9/16
Page 10
M27V512
On-Board Programming
The M27V512 can be directly programmed in the application circuit. See the relevant Application Note AN620.
Electronic Signature
The Electronic Signature (ES) mode allows the reading out of a binary code from an EPROM that will identify its manufacturer and type. This mode is intended for use by programming equipment to automatically matchthe device to be programmed with its corresponding programming algorithm. The ES mode is functional in the 25°C ± 5°C am­bient temperaturerange that is required when pro­gramming theM27V512. To activate the ES mode, the programming equipment must force 11.5V to
12.5V on address line A9 of the M27V512. Two identifier bytes may then be sequenced from the device outputs by toggling address line A0 from VILto VIH. All other address lines must be held at VILduring Electronic Signature mode.
Byte 0 (A0=VIL) represents themanufacturer code and byte 1 (A0=VIH) the device identifier code. For the STMicroelectronics M27V512, these two iden­tifier bytes are given in Table 4 and can be read­out on outputs Q0 to Q7. Note that the M27V512 and M27C512 have the same identifier bytes.
ERASURE OPERATION (applies for UV EPROM)
The erasure characteristics of the M27V512 is such that erasure begins when the cells are ex­posed to light with wavelengths shorter than ap­proximately 4000 Å. It should be noted that sunlight and some type of fluorescent lamps have wavelengths in the 3000-4000 Å range.
Research shows that constant exposure to room level fluorescent lighting could erase a typical M27V512 in about 3 years, while it would take ap­proximately 1 week to cause erasure when ex­posed to direct sunlight. If the M27V512 is to be exposed to these types of lighting conditions for extended periods of time, it is suggested that opaque labels be put over the M27V512 window to prevent unintentional erasure. The recommended erasureprocedure for the M27V512 is exposureto short wave ultraviolet light which has wavelength 2537 Å. The integrated dose (i.e. UV intensity x exposure time) for erasure should be a minimum of 15 W-sec/cm2. The erasure time with this dos­age is approximately 15 to 20 minutes using an ul­traviolet lamp with 12000 µW/cm2power rating. The M27V512 should be placed within 2.5 cm (1 inch) of the lamp tubes during the erasure. Some lamps have a filter on their tubes which should be removed before erasure.
10/16
Page 11
Table 12. Ordering Information Scheme
Example: M27V512 -100 K 1 TR
Device Type
Speed
(1)
-100
-120 = 120 ns
-150 = 150 ns
-200 = 200 ns
Package
F = FDIP28W B = PDIP28 K = PLCC32 N = TSOP28: 8 x 13.4mm
Temperature Range
1 = –0 to 70 °C 6=–40to85°C
= 100 ns
M27V512
Option
TR = Tape& Reel packing
Note: 1. High Speed, see AC Characteristics section for further information.
For a list of available options (Speed, Package, etc...) or for further information on any aspect of this de­vice, please contact the ST Sales Office nearest to you.
11/16
Page 12
M27V512
Table 13. FDIP28W - 28 pin Ceramic Frit-seal DIP, with window, Package Mechanical Data
Symb
Typ Min Max Typ Min Max
A 5.71 0.225 A1 0.50 1.78 0.020 0.070 A2 3.90 5.08 0.154 0.200
B 0.40 0.55 0.016 0.022 B1 1.17 1.42 0.046 0.056
C 0.22 0.31 0.009 0.012
D 38.10 1.500
E 15.40 15.80 0.606 0.622 E1 13.05 13.36 0.514 0.526
e1 2.54 0.100 – e3 33.02 1.300
eA 16.17 18.32 0.637 0.721
L 3.18 4.10 0.125 0.161
S 1.52 2.49 0.060 0.098
7.11 0.280
α 4° 15° 4° 15°
mm inches
N28 28
Figure 9. FDIP28W - 28 pin Ceramic Frit-seal DIP, with window, Package Outline
A2
B1 B e
A3A1A
L
α
C
eA
D2
eB
D
S
N
1
E1 E
FDIPW-a
Drawing is not to scale.
12/16
Page 13
Table 14. PDIP28 -28 pin Plastic DIP, 600 mils width, Package Mechanical Data
mm inches
Symb
Typ Min Max Typ Min Max
A 5.08 0.200 A1 0.38 0.015 – A2 3.56 4.06 0.140 0.160
B 0.38 0.51 0.015 0.020 B1 1.52 0.060
C 0.20 0.30 0.008 0.012 D 36.83 37.34 1.450 1.470
D2 33.02 1.300
E 15.24 0.600 – E1 13.59 13.84 0.535 0.545
e1 2.54 0.100 – eA 14.99 0.590 – eB 15.24 17.78 0.600 0.700
L 3.18 3.43 0.125 0.135 S 1.78 2.08 0.070 0.082 α 0° 10° 0° 10°
M27V512
N28 28
Figure 10. PDIP28 - 28 pin Plastic DIP, 600 mils width, Package Outline
A2A1A
L
B1 B e1
Cα
eA
D
S
N
E1 E
1
PDIP
Drawing is not to scale.
13/16
Page 14
M27V512
Table 15. PLCC32 - 32 lead Plastic Leaded Chip Carrier, rectangular, Package Mechanical Data
Symb
A 2.54 3.56 0.100 0.140
A1 1.52 2.41 0.060 0.095 A2 0.38 0.015
B 0.33 0.53 0.013 0.021
B1 0.66 0.81 0.026 0.032
D 12.32 12.57 0.485 0.495
D1 11.35 11.56 0.447 0.455 D2 9.91 10.92 0.390 0.430
E 14.86 15.11 0.585 0.595
E1 13.89 14.10 0.547 0.555 E2 12.45 13.46 0.490 0.530
e 1.27 0.050
F 0.00 0.25 0.000 0.010 R 0.89 0.035 – N32 32
Nd 7 7 Ne 9 9
CP 0.10 0.004
Typ Min Max Typ Min Max
mm inches
Figure 11. PLCC32 - 32 lead Plastic Leaded Chip Carrier, rectangular, Package Outline
D
D1
1N
Ne E1 E
F
D2/E2
A2
B
0.51 (.020)
1.14 (.045)
PLCC
Drawing is not to scale.
Nd
R
CP
A
A1
B1
e
14/16
Page 15
M27V512
Table 16. TSOP28 - 28 lead Plastic Thin Small Outline, 8 x 13.4mm, Package Mechanical Data
Symb
Typ Min Max Typ Min Max
A 1.25 0.049 A1 0.20 0.008 A2 0.95 1.15 0.037 0.045
B 0.17 0.27 0.007 0.011
C 0.10 0.21 0.004 0.008
D 13.20 13.60 0.520 0.535 D1 11.70 11.90 0.461 0.469
E 7.90 8.10 0.311 0.319
e 0.55 0.022
L 0.50 0.70 0.020 0.028
α 0° 5° 0° 5°
N28 28 CP 0.10 0.004
mm inches
Figure 12. TSOP28 - 28 lead Plastic Thin Small Outline, 8 x 13.4mm, Package Outline
A2
22
21
e
28
1
E
B
78
D1
D
DIE
A
CP
C
TSOP-c
Drawing is not to scale
LA1 α
15/16
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M27V512
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