TEXAS INSTRUMENTS TMS27C020 Technical data

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TMS27C020 262144 BY 8-BIT UV ERASABLE

TMS27PC020 262144 BY 8-BIT

PROGRAMMABLE READ-ONLY MEMORIES

SMLS020C – NOVEMBER 1990 – REVISED SEPTEMBER 1997

Organization...262144 by 8 Bits

Single 5-V Power Supply

Operationally Compatible With Existing Megabit EPROMs

Industry Standard 32-Pin Dual-In-line Package and 32-Lead Plastic Leaded Chip Carrier

All Inputs/Outputs Fully TTL Compatible

±10% VCC Tolerance

Max Access/Min Cycle Time V

± 10%

’27C/PC020-10 100 ns ’27C/PC020-12 120 ns

’27C/PC020-15 150 ns ’27C/PC020-20 200 ns ’27C/PC020-25 250 ns

8-Bit Output For Use in Microprocessor-Based Systems

Very High-Speed SNAP! Pulse Programming

Power Saving CMOS Technology

3-State Output Buffers

400 mV Minimum DC Noise Immunity With Standard TTL Loads

Latchup Immunity of 250 mA on All Input and Output Pins

No Pullup Resistors Required

Low Power Dissipation (VCC = 5.5 V) – Active...165 mW Worst Case – Standby...0.55 mW Worst Case

(CMOS-Input Levels)

Temperature Range Options

description

The TMS27C020 series are 262144 by 8-bit (2097152-bit), ultraviolet (UV) light erasable, electrically programmable read-only memories (EPROMs).

The TMS27PC020 series are one-time programmable (OTP) electrically programmable read-only memories (PROMs).

J PACKAGE (TOP VIEW)

A16

A15

A12

DQ0

DQ1

DQ2

GND

6 7

DQ0

A0–A17 Address Inputs DQ0–DQ7 Inputs (programming)/Outputs E G GND Ground PGM V

†Only in program mode

TMS27PC020

FM PACKAGE

(TOP VIEW)

A12

A15

A16

3213231

430

15 16 17 18 19

DQ1

DQ2

GND

PIN NOMENCLATURE

Chip Enable Output Enable

Program 5-V Power Supply 13-V Power Supply

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

DQ3

DQ4

PGM A17 A14 A13 A8 A9 A1 1 G A10 E DQ7 DQ6 DQ5 DQ4 DQ3

PGM

DQ5

A17

29 28 27 26 25 24 23 22 21

DQ6

†

A14 A13 A8 A9 A11 G A10 E DQ7

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.

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TMS27C020 262144 BY 8-BIT UV ERASABLE TMS27PC020 262144 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES

SMLS020C – 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 TMS27C020 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 TMS27C020 is also offered with two choices of temperature ranges of 0° to 70°C (JL suffix) and – 40°C to 85°C (JE suffix). See Table 1.

The TMS27PC020 is offered in a 32-lead plastic leaded chip carrier using 1,25 mm (50 mil) lead spacing (FM suffix). The TMS27PC020 is offered with two choices of temperature ranges of 0° C to 70°C (FML suffix) and – 40°C to 85°C (FME suffix). See Table 1.

Table 1. Temperature Range Suffixes

SUFFIX FOR OPERATING

FUNCTION

TMS27C040-XXX JL JE

TMS27PC040-XXX FML FME

TEMPERATURE RANGES

0°C TO 70°C –40 °C TO 85°C

These EPROMs operate from a single 5-V supply (in the read mode), they are ideal for use in microprocessor-based systems. One other (13 V) supply is needed for programming. All programming signals are TTL level. For programming outside the system, existing EPROM programmers can be used.

operation

The seven modes of operation for the TMS27C020 and TMS27PC020 are listed in Table 2. The read mode requires a single 5-V supply . All inputs are TTL level except for V A9 for the signature mode.

Table 2. Operation Modes

MODE

FUNCTION

E V G V

PGM X X X V

A9 X X X X X X VH‡ VH‡ A0 X X X X X X V

DQ0–DQ7 Data Out Hi-Z Hi-Z Data In Data Out Hi-Z

†

X can be VIL or V

‡

VH = 12 V ± 0.5 V

READ

IL IL

X V

OUTPUT

DISABLE

STANDBY PROGRAMMING VERIFY

X V

during programming (13 V), and VH (12 V) on

†

PROGRAM

INHIBIT

X V X X

SIGNATURE MODE

V V

CODE

MFG DEVICE

97 32

IL IL

CC CC

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TMS27C020 262144 BY 8-BIT UV ERASABLE

TMS27PC020 262144 BY 8-BIT

PROGRAMMABLE READ-ONLY MEMORIES

SMLS020C – NOVEMBER 1990 – REVISED SEPTEMBER 1997

read/output disable

When the outputs of two or more TMS27C020s or TMS27PC020s 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 TMS27C020 and TMS72PC020 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 EPROM is interfaced to industry standard TTL or MOS logic devices. The input/output layout approach controls latchup without compromising performance or packing density.

power down

Active I 100 µA by applying a high CMOS input on E

erasure

Before programming, the TMS27C020 is erased by exposing the chip through the transparent lid to a high intensity ultraviolet light (wavelength 2537 Å). The recommended minimum exposure dose (UV intensity × exposure time) is 15-W⋅s/cm 21 minutes. The lamp should be located about 2.5 cm above the chip during erasure. After erasure, all bits are in the high state. It should be noted that normal ambient light contains the correct wavelength for erasure. Therefore, when using the TMS27C020, the window should 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 ultraviolet light.

supply current can be reduced from 30 mA to 500 µA by applying a high TTL input on E and to

. In this mode all outputs are in the high-impedance state.

. A typical 12-mW/cm2, filterless UV lamp erases the device in

and G pins. All other

SNAP! Pulse programming

The TMS27C020 and TMS27PC020 are programmed using the TI SNAP! Pulse programming algorithm, illustrated by the flowchart in Figure 1, which programs in a nominal time of twenty-six 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 ten 100-µs pulses per byte are provided before a failure is recognized.

equals 13 V , VCC = 6.5 V, E = VIL, G = VIH. Data is presented

The programming mode is achieved when V in parallel (eight bits) on pins DQ0 through DQ7. Once addresses and data are stable, PGM

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

= VPP = 5 V ± 10%.

program inhibit

Programming can be inhibited by maintaining a high level input on the E

program verify

Programmed bits can be verified with V

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 the TMS27C020 is 9732. A0 low selects the manufacturer’s code 97 (Hex), and A0 high selects the device code 32 (Hex), as shown in Table 3.

or PGM pins.

equals 13 V when G = VIL, E = VIL, and PGM = VIH.

is pulsed low.

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TMS27C020 262144 BY 8-BIT UV ERASABLE

IDENTIFIER

†

TMS27PC020 262144 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES

SMLS020C – NOVEMBER 1990 – REVISED SEPTEMBER 1997

signature mode (continued)

Table 3. Signature Mode

A0 DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0 HEX

MANUFACTURER CODE V DEVICE CODE V

†

= G = VIL, A1–A8 = VIL, A9 = VH, A10–A17 = VIL, VPP = VCC.

IL IH

1 0 0 1 0 1 1 1 97 0 0 1 1 0 0 1 0 32

PINS

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TMS27C020 262144 BY 8-BIT UV ERASABLE

TMS27PC020 262144 BY 8-BIT

PROGRAMMABLE READ-ONLY MEMORIES

SMLS020C – 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

Increment Address

Program One Pulse = tw = 100 µs

X = 10?X = X + 1

Program

Mode

Interactive

Mode

VCC = VPP = 5 V ± 0.5 V

Last

Address?

Yes Yes

Compare All Bytes

to Original

Data

Pass

Device Passed

Fail

Device Failed

Figure 1. SNAP! Pulse Programming Flowchart

Final

Verification

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TMS27C020 262144 BY 8-BIT UV ERASABLE TMS27PC020 262144 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES

SMLS020C – NOVEMBER 1990 – REVISED SEPTEMBER 1997

logic symbol

†

This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers are for the J package.

†

EPROM 262 144 × 8

A0 A1 A2 A3 A4 A5 A6 A7 A8

A9 A10 A11 A12 A13 A14 A15 A16 A17

12 11 10 9 8 7 6 5 27 26 23 25 4 28 29 3 2 30

17 [PWR DOWN]

262 143

A∇ A∇ A∇ A∇ A∇ A∇ A∇ A∇

13 14

15 17 18 19 20 21

DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7

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VCCSuppl

oltage

VPPSuppl

oltage

VIHHigh-level dc input voltage

VILLow-level dc input voltage

VOHHigh-level dc output voltage

VOLLow-level dc output voltage

pply current (standby)

TMS27C020 262144 BY 8-BIT UV ERASABLE

TMS27PC020 262144 BY 8-BIT

PROGRAMMABLE READ-ONLY MEMORIES

SMLS020C – NOVEMBER 1990 – REVISED SEPTEMBER 1997

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

Supply voltage range, V Supply voltage range, V Input voltage range (see Note 1), All inputs except A9 : –0.6 V to V

(see Note 1) : –0.6 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

: –0.6 V to 14 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

‡

+ 1 V. . . . . . . . . . . . . . . . . . . . . . . . . . . .

A9 : –0.6 V to 13.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output voltage range, with respect to V

(see Note 1) : –0.6 V to VCC + 1 V. . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range (’27C020-_ _ JL, ’27PC020_ _FML) : 0°C to 70°C. . . . . . . . . . . . . . . . .

Operating free-air temperature range (’27C020-_ _JE, ’27PC020-_ _FME) : – 40°C to 85°C. . . . . . . . . . . . . . .

Storage temperature range, T

‡

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.

: –65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

stg

recommended operating conditions

MIN NOM MAX UNIT

y v

NOTE 2: VCC must be applied before or at the same time as VPP and removed after or at the same time as VPP. The device must not be

Operating free-air temperature

inserted into or removed from the board when VPP or VCC is applied.

Read mode (see Note 2) 4.5 5 5.5 V SNAP! Pulse programming algorithm 6.25 6.5 6.75 V Read mode VCC–0.6 V SNAP! Pulse programming algorithm 12.75 13 13.25 V

TTL 2 VCC+0.5 CMOS VCC–0.2 VCC+0.5 TTL –0.5 0.8 CMOS –0.5 GND+0.2 ’27C020-_ _JL,

’27PC020-_ _FML ’27C020-_ _JE,

’27PC020-_ _FME

0 70 °C

– 40 85 °C

CCVCC

+0.6 V

electrical characteristics over full ranges of operating conditions

PARAMETER TEST CONDITIONS MIN MAX UNIT

Input current (leakage) VI = 0 V to 5.5 V ±1 µA

Output current (leakage) VO = 0 V to V

PP1VPP

PP2VPP

CC1VCC

CC2VCC

†

Minimum cycle time = maximum access time.

supply current VPP = VCC = 5.5 V 10 µA supply current (during program pulse) VPP = 13 V 50 mA

supply current (active)

TTL-input level VCC = 5.5 V, E = V CMOS-input level VCC = 5.5 V, E = VCC ± 0.2 V 100

IOH = –20 µA VCC– 0.2 IOH = – 2 mA 2.4 IOL = 2.1 mA 0.4 IOL = 20 µA 0.1

. . . 500

VCC = 5.5 V, E = V t

= minimum cycle time,

cycle

outputs open

†

±1 µA

30 mA

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TMS27C020 262144 BY 8-BIT UV ERASABLE

TEST

CONDITIONS

1 Series 74

TMS27PC020 262144 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES

SMLS020C – NOVEMBER 1990 – REVISED SEPTEMBER 1997

capacitance over recommended ranges of supply voltage and operating free-air temperature, f = 1 MHz

†

Capacitance measurements are made on sample basis only.

‡

All typical values are at TA = 25°C and nominal voltages.

†

PARAMETER

Input capacitance VI = 0 V, f = 1 MHz 4 8 pF Output capacitance VO = 0 V, f = 1 MHz 6 10 pF

TEST CONDITIONS MIN NOM‡MAX UNIT

switching characteristics over full ranges of recommended operating conditions (see Notes 3 and 4)

’27C020-10 ’27C020-12 ’27C020-15 27C020-20 ’27C020-25

PARAMETER

§ 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

Access time

a(A)

from address Access time

from chip en-

a(E)

able Output enable

en(G)

time from G Output disable

time from G

dis

, whichever

occurs first Output data

valid time after change of ad-

v(A)

dress, E

, or G, whichever occurs first

Value calculated from 0.5-V delta to measured output level. This parameter is sampled and not 100% tested.

and 0.8 V for logic low. (See Figure 2).

4. Common test conditions apply for t

†

CL = 100 pF,

TTL load, Input tr ≤ 20 ns, Input tf ≤ 20 ns

’27PC020-10 ’27PC020-12 ’27PC020-15 27PC020-20 ’27PC020-25

MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX

100 120 150 200 250 ns

55 55 75 75 100 ns

0 50 0 50 0 60 0 60 0 80 ns

0 0 0 0 0 ns

except during programming.

dis

UNIT

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TMS27C020 262144 BY 8-BIT UV ERASABLE

TMS27PC020 262144 BY 8-BIT

PROGRAMMABLE READ-ONLY MEMORIES

SMLS020C – NOVEMBER 1990 – REVISED SEPTEMBER 1997

switching characteristics for programming: VCC = 6.5 V and VPP = 13 V (SNAP! Pulse), TA = 25°C (see Note 3)

PARAMETER MIN MAX UNIT

dis(G)

en(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

timing requirements for programming

w(PGM)

su(A)

su(E)

su(G)

su(D)

su(VPP)

su(VCC)

h(A)

h(D)

Output disable time from G 0 100 ns Output enable time from G 150 ns

0.8 V for logic low (See Figure 2).

MIN TYP MAX UNIT

Pulse duration, program SNAP! Pulse programming algorithm 95 100 105 µs Setup time, address 2 µs Setup time, E 2 µs Setup time, G 2 µs Setup time, data 2 µs Setup time, V Setup time, V Hold time, address 0 µs Hold time, data 2 µs

PP CC

2 µs 2 µs

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TMS27C020 262144 BY 8-BIT UV ERASABLE TMS27PC020 262144 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES

SMLS020C – NOVEMBER 1990 – REVISED SEPTEMBER 1997

PARAMETER MEASUREMENT INFORMATION

Output

Under Test

2.08 V

RL = 800 Ω

CL = 100 pF

(see Note A)

A0–A17

DQ0–DQ7

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.

2 V

0.8 V

Figure 2. The ac Testing Output Load Circuit and Waveform

Addresses Valid

a(A)

a(E)

ten(G)

Hi-Z

2 V

0.8 V

v(A)

Output Valid

dis

Hi-Z

Figure 3. Read-Cycle Timing

POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443

PARAMETER MEASUREMENT INFORMATION

Program

A0–A17

su(A)

DQ0–DQ7

su(E)

PGM

†

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.

en(G)

w(PGM)

Data-In Stable

su(D)

su(VPP)

su(VCC)

Address Stable

h(D)

su(G)

TMS27C020 262144 BY 8-BIT UV ERASABLE

TMS27PC020 262144 BY 8-BIT

PROGRAMMABLE READ-ONLY MEMORIES

SMLS020C – NOVEMBER 1990 – REVISED SEPTEMBER 1997

Verify

‡

Data-Out

en(G)

Valid

†

h(A)

dis(G)

Address

N + 1

†

Figure 4. Program-Cycle Timing (SNAP! Pulse Programming)

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TMS27C020 262144 BY 8-BIT UV ERASABLE TMS27PC020 262144 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES

SMLS020C – NOVEMBER 1990 – REVISED SEPTEMBER 1997

FM (R-PQCC-J32) PLASTIC J-LEADED CHIP CARRIER

Seating Plane

0.140 (3,56)

0.495 (12,57)

0.485 (12,32)

0.453 (11,51)

0.447 (11,35)

301

0.129 (3,28)

0.123 (3,12)

0.049 (1,24)

0.043 (1,09)

0.008 (0,20) NOM

0.132 (3,35)

0.004 (0,10)

0.050 (1,27)

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

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

POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443

TMS27C020 262144 BY 8-BIT UV ERASABLE

TMS27PC020 262144 BY 8-BIT

PROGRAMMABLE READ-ONLY MEMORIES

SMLS020C – NOVEMBER 1990 – REVISED SEPTEMBER 1997

J (R-CDIP-T**) CERAMIC SIDE-BRAZE DUAL-IN-LINE PACKAGE

24 PIN SHOWN

0.090 (2,29)

0.060 (1,53)

0.100 (2,54)

0.065 (1,65)

0.045 (1,14)

0.018 (0,46) MIN

0.022 (0,56)

0.014 (0,36)

0.175 (4,45)

0.140 (3,56)

Seating Plane

0.125 (3,18) MIN

Lens Protrusion

0.010 (0,25) MAX

0°–10°

0.012 (0,30)

0.008 (0,20)

DIM

NOTES: A. All linear dimensions are in inches (millimeters).

PINS**

MAX

MIN MAX

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)

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)

WIDE WIDE

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)

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

POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443

TMS27C020 262144 BY 8-BIT UV ERASABLE TMS27PC020 262144 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES

SMLS020C – NOVEMBER 1990 – REVISED SEPTEMBER 1997

POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443

IMPORTANT NOTICE

T exas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue 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.

CERT AIN 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 APPLICA TIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERST OOD 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 semiconductor products or services might be or are used. TI’s publication of information regarding any third party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.

TEXAS INSTRUMENTS TMS27C020 Technical data

Specifications and Main Features

Frequently Asked Questions

User Manual