TMS27C512-100JL4 [TI]
64KX8 UVPROM, 100ns, CDIP28, 0.600 INCH, WINDOWED, CERAMIC, DIP-28;型号: | TMS27C512-100JL4 |
厂家: | TEXAS INSTRUMENTS |
描述: | 64KX8 UVPROM, 100ns, CDIP28, 0.600 INCH, WINDOWED, CERAMIC, DIP-28 可编程只读存储器 电动程控只读存储器 CD 内存集成电路 |
文件: | 总13页 (文件大小:182K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
TMS27C512 65536 BY 8-BIT UV ERASABLE
TMS27PC512 65536 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS512G – NOVEMBER 1985 – REVISED SEPTEMBER 1997
J PACKAGE
(TOP VIEW)
Organization . . . 65536 by 8 Bits
Single 5-V Power Supply
Pin Compatible With Existing 512K MOS
ROMs, PROMs, and EPROMs
A15
A12
A7
A6
A5
A4
A3
A2
A1
V
CC
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
A14
A13
A8
2
All Inputs/Outputs Fully TTL Compatible
Max Access/Min Cycle Time
3
4
A9
5
V
± 10%
CC
A11
G/V
A10
E
DQ7
DQ6
DQ5
DQ4
DQ3
6
’27C/PC512-10
’27C/PC512-12
’27C/PC512-15
’27C/PC512-20
’27C/PC512-25
100 ns
120 ns
150 ns
200 ns
250 ns
7
PP
8
9
A0
10
11
12
13
14
DQ0
DQ1
DQ2
GND
Power Saving CMOS Technology
Very High-Speed SNAP! Pulse
Programming
3-State Output Buffers
400-mV Minimum DC Noise Immunity With
Standard TTL Loads
FM PACKAGE
(TOP VIEW)
Latchup Immunity of 250 mA on All Input
and Output Lines
Low Power Dissipation ( V
= 5.25 V )
CC
4
3 2 1 32 31 30
– Active . . . 158 mW Worst Case
– Standby . . . 1.4 mW Worst Case
(CMOS Input Levels)
5
6
7
8
9
29
A6
A5
A4
A3
A2
A1
A0
NC
DQ0
A8
A9
A11
28
27
Temperature Range Options
26 NC
512K EPROM Available With MIL-STD-883C
Class B High Reliability Processing
(SMJ27C512)
G/V
A10
E
DQ7
DQ6
25
24
23
22
21
PP
10
11
12
13
description
14 15 16 17 18 19 20
The TMS27C512 series are 65536 by 8-bit
(524288-bit), ultraviolet (UV) light erasable,
electrically programmable read-only memories
(EPROMs).
PIN NOMENCLATURE
The TMS27PC512 series are 65536 by 8-bit
(524288-bit), one-time programmable (OTP)
electrically programmable read-only memories
(PROMs).
A0–A15
E
Address Inputs
Chip Enable/Power Down
DQ0–DQ7
Inputs (programming)/Outputs
13-V Programming Power Supply
Ground
G/V
PP
GND
NC
No Internal Connection
Make No External Connection
5-V Power Supply
NU
V
CC
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.
Copyright 1997, Texas Instruments Incorporated
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.
1
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS27C512 65536 BY 8-BIT UV ERASABLE
TMS27PC512 65536 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS512G – NOVEMBER 1985 – 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 data outputs are 3-state for connecting multiple devices to a common bus. The TMS27C512 and the
TMS27PC512 are pin compatible with 28-pin 512K MOS ROMs, PROMs, and EPROMs.
The TMS27C512 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 TMS27PC512 OTP PROM is supplied in a 32-lead
plastic leaded chip carrier package using 1,25-mm (50-mil) lead spacing (FM suffix).
The TMS27C512 and TMS27PC512 are offered with two choices of temperature ranges of 0°C to 70°C (JL and
FML suffix) and – 40°C to 85°C (JE and FME suffix). See Table 1.
All package styles conform to JEDEC standards.
Table 1. Temperature Range Suffixes
SUFFIX FOR OPERATING
FREE-AIR TEMPERATURE RANGES
EPROM
AND
OTP PROM
0°C TO 70°C
– 40°C TO 85°C
TMS27C512-xxx
TMS27PC512-xxx
JL
JE
FML
FME
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. The device is programmed using the SNAP! Pulse programming algorithm. The SNAP! Pulse
programmingalgorithmusesaV of13VandaV of6.5Vforanominalprogrammingtimeofsevenseconds.
PP
CC
For programming outside the system, existing EPROM programmers can be used. Locations can be
programmed singly, in blocks, or at random.
2
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS27C512 65536 BY 8-BIT UV ERASABLE
TMS27PC512 65536 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS512G – NOVEMBER 1985 – REVISED SEPTEMBER 1997
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 during programming (13 V for SNAP! Pulse) and 12 V on A9 for signature mode.
PP
Table 2. Operation Modes
†
MODE
FUNCTION
OUTPUT
DISABLE
PROGRAM
INHIBIT
SIGNATURE
MODE
READ
STANDBY PROGRAMMING
VERIFY
E
V
V
V
V
V
V
V
V
V
V
IL
IL
IH
IL
IL
IH
IL
G/V
PP
V
IH
X
V
PP
V
PP
IL
IL
IL
V
V
V
V
V
V
V
V
CC
CC
CC
X
CC
X
CC
X
CC
X
CC
X
CC
X
‡
‡
V
H
A9
A0
V
H
X
X
X
X
X
X
V
V
IH
IL
CODE
DQ0–DQ7
Data Out
Hi-Z
Hi-Z
Data In
Data Out
Hi-Z
MFG
97
DEVICE
85
†
‡
X can be V or V
IL
H
.
IH
= 12 V ± 0.5 V.
V
read/output disable
When the outputs of two or more TMS27C512s or TMS27PC512s are connected in parallel on the same bus,
the output of any particular device in the circuit can be read with no interference from the competing outputs
of the other devices. To read the output of a single device, a low-level signal is applied to the E and G/V pins.
PP
All other devices in the circuit should have their outputs disabled by applying a high-level signal to one of these
pins. Output data is accessed at pins DQ0 through DQ7.
latchup immunity
Latchup immunity on the TMS27C512 and TMS27PC512 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. Input-output layout approach controls latchup
without compromising performance or packing density.
power down
Active I
supply current can be reduced from 30 mA to 500 µA (TTL-level inputs) or 250 µA (CMOS-level
CC
inputs) by applying a high TTL/CMOS signal to the E pin. In this mode all outputs are in the high-impedance
state.
erasure (TMS27C512)
Before programming, the TMS27C512 EPROM is erased by exposing the chip through the transparent lid
to a high intensity ultraviolet light (wavelength 2537 angstroms). EPROM erasure before programming is
necessarytoassurethatallbitsareinthelogichighstate. Logiclowsareprogrammedintothedesiredlocations.
A programmed logic low can be erased only by ultraviolet light. The recommended minimum exposure dose
2
2
(UV intensity × exposure time) is 15-W s/cm . A typical 12-mW/cm , filterless UV lamp erases the device in
21 minutes. The lamp should be located about 2.5 cm above the chip during erasure. It should be noted that
normal ambient light contains the correct wavelength for erasure. Therefore, when using the TMS27C512, the
window should be covered with an opaque label.
3
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS27C512 65536 BY 8-BIT UV ERASABLE
TMS27PC512 65536 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS512G – NOVEMBER 1985 – REVISED SEPTEMBER 1997
initializing (TMS27PC512)
The one-time programmable TMS27PC512 PROM is provided with all bits in the logic high state, then logic lows
are programmed into the desired locations. Logic lows programmed into a PROM cannot be erased.
SNAP! Pulse programming
The 512K EPROM and OTP PROM are programmed using the TI SNAP! Pulse programming algorithm
illustrated by the flowchart in Figure 1, which programs in a nominal time of seven seconds. Actual programming
time varies as a function of the programmer used.
The SNAP! Pulse programming algorithm uses initial pulses 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 with G/V = 13 V, V
(eight bits) on pins DQ0 to DQ7. Once addresses and data are stable, E is pulsed.
= 6.5 V, and E = V . Data is presented in parallel
IL
PP
CC
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
= 5 V, G/V = V and E = V .
CC
PP IL, IL
program inhibit
Programming can be inhibited by maintaining a high level input on the E pin.
program verify
Programmed bits can be verified when G/V and E = V .
PP
IL
signature mode
The signature mode provides access to a binary code identifying the manufacturer and type. This mode is
activated when A9 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 9785. A0 selects the manufacturer’s code 97 (Hex), and
A0 high selects the device code 85, as shown in Table 3.
Table 3. Signature Mode
PINS
†
IDENTIFIER
A0
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
HEX
97
Manufacturer Code
Device Code
V
1
1
0
0
0
0
1
0
0
0
1
1
1
0
1
1
IL
V
IH
85
†
E = G = V , A9 = V , A1–A8 = V , A10–A15 = V , PGM = V or V
IL IL IL IH
.
IL
H
4
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS27C512 65536 BY 8-BIT UV ERASABLE
TMS27PC512 65536 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS512G – NOVEMBER 1985 – REVISED SEPTEMBER 1997
Start
Address = First Location
Program
Mode
V
CC
= 6.5 V ± 0.25 V, G/V = 13 V ± 0.25 V
PP
Program One Pulse = t = 100 µs
Increment Address
w
No
Last
Address
?
Yes
Address = First Location
X = 0
Program One Pulse = t = 100 µs
w
No
Fail
Increment
Address
Verify
One Byte
X = X + 1
X = 10?
Interactive
Mode
Pass
No
Last
Address
?
Yes
Yes
Device Failed
V
CC
= 5 V ± 0.5 V, G/V
= V
PP IL
Compare
All Bytes
To Original
Data
Fail
Final
Verification
Pass
Device Passed
Figure 1. SNAP! Pulse Programming Flow Chart
5
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS27C512 65536 BY 8-BIT UV ERASABLE
TMS27PC512 65536 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS512G – NOVEMBER 1985 – REVISED SEPTEMBER 1997
†
logic symbols
EPROM
65 536 × 8
OTP PROM
65 536 × 8
10
9
8
7
6
5
4
3
25
24
21
23
2
26
27
1
10
9
8
7
6
5
4
3
25
24
21
23
2
26
27
1
0
0
A0
A1
A2
A3
A4
A5
A6
A7
A8
A0
A1
A2
A3
A4
A5
A6
A7
A8
11
12
13
15
16
17
18
19
11
12
13
15
16
17
18
19
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
0
0
A
A
65 535
65 535
A9
A9
A10
A11
A12
A13
A14
A15
E
A10
A11
A12
A13
A14
A15
E
15
15
20
20
[PWR DWN]
[PWR DWN]
&
&
22
22
EN
EN
G/V
PP
G/V
PP
†
These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the J package.
‡
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
Supply voltage range, V
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.6 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.6 V to 14 V
CC
PP
Input voltage range (see Note 1): All inputs except A9 . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.6 V to V
+ 1 V
CC
A9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.6 V to 13.5 V
Output voltage range (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.6 V to V + 1 V
CC
Operating free-air temperature range (’27C512-_ _JL, ’27PC512-_ _FML)T . . . . . . . . . . . . . . . 0°C to 70°C
A
Operating free-air temperature range (’27C512-_ _JE, ’27PC512-_ _FME)T . . . . . . . . . . . . –40°C to 85°C
A
Storage temperature range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
stg
‡
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.
6
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS27C512 65536 BY 8-BIT UV ERASABLE
TMS27PC512 65536 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS512G – NOVEMBER 1985 – REVISED SEPTEMBER 1997
recommended operating conditions
MIN
4.5
NOM
5
MAX
5.5
UNIT
Read mode (see Note 2)
V
Supply voltage
V
V
V
CC
SNAP! Pulse programming algorithm
6.25
12.75
2
6.5
13
6.75
13.25
G/V
PP
Supply voltage
SNAP! Pulse programming algorithm
TTL
V
V
+1
+1
CC
V
V
High-level dc input voltage
IH
CMOS
TTL
V
– 0.2
CC
– 0.5
CC
0.8
0.2
Low-level dc input voltage
V
IL
CMOS
– 0.5
Operating free-air
temperature
TMS27C512-_ _JL
TMS27PC512-_ _FML
T
0
70
85
°C
°C
A
Operating free-air
temperature
TMS27C512-_ _JE
TMS27PC512-_ _FME
T
A
– 40
NOTE 2:
V
must be applied before or at the same time as G/V
PP
and removed after or at the same time as G/V . The device must not be
PP
is applied.
CC
inserted into or removed from the board when V
or V
PP
CC
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature
†
TYP
PARAMETER
TEST CONDITIONS
= – 2.5 mA
MIN
MAX
UNIT
I
I
I
I
3.5
OH
OH
OL
OL
V
V
High-level dc output voltage
V
OH
= – 20 µA
V
– 0.1
CC
= 2.1 mA
0.4
0.1
±1
Low-level dc output voltage
V
OL
= 20 µA
I
I
I
Input current (leakage)
Output current (leakage)
V = 0 V to 5.5 V
µA
µA
I
I
V
= 0 V to V
O CC
±1
O
G/V
PP
supply current (during program pulse)
TTL-input level
G/V
PP
= 13 V
35
250
100
50
mA
PP
V
V
V
= 5.5 V, . . . . . E = V
= 5.5 V, . . . . . E = V
500
250
CC
CC
IH
I
V
supply current (standby)
µA
CC1
CC2
CC
CC
CMOS-input level
CC
= 5.5 V,
IL
= minimum cycle time,
E = V ,
CC
I
V
supply current (active)
t
15
30
mA
cycle
outputs open
†
Typical values are at T = 25°C and nominal voltages.
A
capacitance over recommended ranges of supply voltage and operating free-air
†
temperature, f = 1 MHz
‡
PARAMETER
Input capacitance
Output capacitance
G/V input capacitance
TEST CONDITIONS
MIN TYP
MAX
10
UNIT
pF
C
C
C
V = 0 V,
f = 1 MHz
f = 1 MHz
6
I
I
V
= 0 V,
10
20
14
pF
O
O
G/V
PP
= 0 V, f = 1 MHz
25
pF
G/VPP
PP
†
‡
Capacitance measurements are made on a sample basis only.
Typical values are at T = 25°C and nominal voltages.
A
7
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS27C512 65536 BY 8-BIT UV ERASABLE
TMS27PC512 65536 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS512G – NOVEMBER 1985 – REVISED SEPTEMBER 1997
switching characteristics over recommended ranges of operating conditions
’27C512-10
’27PC512-10
’27C512-12
’27PC512-12
TEST CONDITIONS
(SEE NOTES 3 AND 4)
PARAMETER
UNIT
MIN
MAX
100
100
55
MIN
MAX
120
120
55
t
t
t
t
Access time from address
Access time from chip enable
Output enable time from G/V
ns
ns
ns
ns
a(A)
a(E)
en(G)
dis
C
= 100 pF,
L
1 Series 74 TTL Load,
PP
Input t ≤ 20 ns,
†
r
OutputdisabletimefromG/V orE, whicheveroccursfirst
PP
0
0
45
0
0
45
Input t ≤ 20 ns
f
Output data valid time after change of address, E, or G/V
,
PP
t
ns
v(A)
†
whichever occurs first
’27C512-15
’27PC512-15
TEST CONDITIONS
(SEE NOTES 3 AND 4)
PARAMETER
UNIT
MIN
MAX
150
150
75
t
t
t
t
Access time from address
Access time from chip enable
Output enable time from G/V
ns
ns
ns
ns
a(A)
a(E)
en(G)
dis
C
= 100 pF,
L
1 Series 74 TTL Load,
PP
Input t ≤ 20 ns,
†
r
Output disable time from G/V
PP
or E, whichever occurs first
0
0
60
Input t ≤ 20 ns
f
Output data valid time after change of address, E, or G/V , whichever
PP
t
ns
v(A)
†
occurs first
’27C512-20
’27PC512-20
’27C512-25
’27PC512-25
TEST CONDITIONS
(SEE NOTES 3 AND 4)
PARAMETER
UNIT
MIN
MAX
200
200
75
MIN
MAX
250
250
100
60
t
t
t
t
Access time from address
Access time from chip enable
Output enable time from G/V
ns
ns
ns
ns
a(A)
a(E)
en(G)
dis
C
= 100 pF,
L
1 Series 74 TTL Load,
PP
Input t ≤ 20 ns,
†
r
OutputdisabletimefromG/V orE, whicheveroccursfirst
PP
0
0
60
0
0
Input t ≤ 20 ns
f
Output data valid time after change of address, E, or G/V
,
PP
t
ns
v(A)
†
whichever occurs first
†
Value calculated from 0.5 V delta to measured output level. This parameter is only sampled.
NOTES: 3. 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
0.8 V for logic low (see Figure 2).
4. Common test conditions apply for t
except during programming.
dis
switching characteristics for programming: V
A
= 6.50 V and G/V
= 13 V (SNAP! Pulse),
CC
PP
T = 25°C (see Note 3)
PARAMETER
MIN
MAX UNIT
130 ns
t
Disable time, output from G/V
PP
0
dis(G)
NOTE 3: 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
0.8 V for logic low.
8
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS27C512 65536 BY 8-BIT UV ERASABLE
TMS27PC512 65536 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS512G – NOVEMBER 1985 – REVISED SEPTEMBER 1997
timing requirements for programming
MIN NOM
MAX
UNIT
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
ns
t
t
t
t
t
t
t
t
t
t
t
Pulse duration, initial program
Setup time, address
95
2
100
105
w(IPGM)
su(A)
Setup time, data
2
su(D)
Setup time, G/V
PP
2
su(VPP
su(VCC)
h(A)
Setup time, V
CC
2
Hold time, address
Hold time, data
0
2
h(D)
Hold time, G/V
PP
2
h(VPP)
rec(PG)
EHD
Recovery time, G/V
PP
2
Data valid from E low
Rise time, G/V
1
50
r(PG)G
PP
PARAMETER MEASUREMENT INFORMATION
2.08 V
R
= 800 Ω
L
Output
Under Test
C
= 100 pF
L
(see Note A)
2.4 V
2 V
2 V
0.8 V
0.8 V
0.4 V
NOTES: A.
C
includes probe and fixture capacitance.
L
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. AC Testing Output Load Circuit
9
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS27C512 65536 BY 8-BIT UV ERASABLE
TMS27PC512 65536 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS512G – NOVEMBER 1985 – REVISED SEPTEMBER 1997
PARAMETER MEASUREMENT INFORMATION
V
V
IH
A0–A15
Addresses Valid
IL
t
a(A)
V
V
IH
E
IL
t
a(E)
V
V
IH
G/V
PP
IL
t
dis
t
en(G)
t
v(A)
V
V
OH
DQ0–DQ7
Hi-Z
Output Valid
Hi-Z
OL
Figure 3. Read-Cycle Timing
V
IH
A0–A15
Address Stable
V
IL
t
t
su(A)
h(A)
V
V
V
IH/ OH
DQ0–DQ7
Data-In Stable
Hi-Z
Data-Out Valid
V
IL/ OL
†
t
t
dis(G)
su(D)
t
h(D)
V
V
PP
t
EHD
G/V
PP
t
h(VPP)
IL
t
su(VPP)
r(PG)G
t
t
rec(PG)
V
V
IH
E
t
su(VCC)
IL
t
w(IPGM)
‡
V
V
CC
V
CC
CC
†
‡
t
is a characteristic of the device but must be accommodated by the programmer.
dis(G)
13-V G/V
and 6.5-V V
for SNAP! Pulse programming.
CC
PP
Figure 4. Program-Cycle Timing (SNAP! Pulse Programming)
10
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS27C512 65536 BY 8-BIT UV ERASABLE
TMS27PC512 65536 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS512G – NOVEMBER 1985 – REVISED SEPTEMBER 1997
FM (R-PQCC-J32)
PLASTIC J-LEADED CHIP CARRIER
Seating Plane
0.004 (0,10)
0.140 (3,56)
0.132 (3,35)
0.129 (3,28)
0.495 (12,57)
0.485 (12,32)
0.123 (3,12)
0.453 (11,51)
0.447 (11,35)
0.049 (1,24)
0.043 (1,09)
0.008 (0,20) NOM
1
30
4
29
5
0.020 (0,51)
0.015 (0,38)
0.595 (15,11)
0.585 (14,86)
0.553 (14,05)
0.547 (13,89)
0.030 (0,76)
TYP
21
13
14
20
0.050 (1,27)
4040201-4/B 03/95
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Falls within JEDEC MS-016
11
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS27C512 65536 BY 8-BIT UV ERASABLE
TMS27PC512 65536 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS512G – NOVEMBER 1985 – REVISED SEPTEMBER 1997
J (R-CDIP-T**)
CERAMIC SIDE-BRAZE DUAL-IN-LINE PACKAGE
24 PIN SHOWN
B
13
24
C
12
1
Lens Protrusion
0.010 (0,25) MAX
0.065 (1,65)
0.045 (1,14)
0.090 (2,29)
0.060 (1,53)
0.175 (4,45)
A
0.140 (3,56)
0.018 (0,46) MIN
Seating Plane
0°–10°
0.125 (3,18) MIN
0.022 (0,56)
0.014 (0,36)
0.100 (2,54)
0.012 (0,30)
0.008 (0,20)
PINS**
24
28
32
40
DIM
NARR
WIDE
NARR
WIDE
NARR
WIDE
NARR
WIDE
0.624(15,85) 0.624(15,85) 0.624(15,85) 0.624(15,85) 0.624(15,85) 0.624(15,85) 0.624(15,85) 0.624(15,85)
0.590(14,99) 0.590(14,99) 0.590(14,99) 0.590(14,99) 0.590(14,99) 0.590(14,99) 0.590(14,99) 0.590(14,99)
1.265(32,13) 1.265(32,13) 1.465(37,21) 1.465(37,21) 1.668(42,37) 1.668(42,37) 2.068(52,53) 2.068(52,53)
1.235(31,37) 1.235(31,37) 1.435(36,45) 1.435(36,45) 1.632(41,45) 1.632(41,45) 2.032(51,61) 2.032(51,61)
0.541(13,74) 0.598(15,19) 0.541(13,74) 0.598(15,19) 0.541(13,74) 0.598(15,19) 0.541(13,74) 0.598(15,19)
0.514(13,06) 0.571(14,50) 0.514(13,06) 0.571(14,50) 0.514(13,06) 0.571(14,50) 0.514(13,06) 0.571(14,50)
MAX
MIN
MAX
MIN
MAX
MIN
A
B
C
4040084/B 04/95
NOTES: A. All linear dimensions are in inches (millimeters).
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.
12
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
IMPORTANT NOTICE
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any product or service without notice, and advise customers to obtain the latest version of relevant information
to verify, before placing orders, that information being relied on is current and complete. All products are sold
subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those
pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
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.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO
BE FULLY AT THE CUSTOMER’S RISK.
In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other
intellectual property right of TI covering or relating to any combination, machine, or process in which such
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party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.
Copyright 1998, Texas Instruments Incorporated
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