Microchip Technology Inc 27C128-25I-SO, 27C128-25I-P, 27C128-17-P, 27C128-17-L, 27C128-15I-SO Datasheet



27C128

128K (16K x 8) CMOS EPROM

FEATURES

• High speed performance

- 120 ns access time available

• CMOS Technology for low power consumption

- 20 mA Active current

- 100 µ A Standby current

• Factory programming available

• Auto-insertion-compatible plastic packages

• Auto ID aids automated programming

• Separate chip enable and output enable controls

• High speed “express” programming algorithm

• Organized 16K x 8: JEDEC standard pinouts

- 28-pin Dual-in-line package

- 32-pin PLCC Package

- 28-pin SOIC package

- Tape and reel

• Available for the following temperature ranges:

- Commercial: 0˚C to +70˚C

- Industrial: -40˚C to +85˚C

- Automotive: -40˚C to +125˚C

DESCRIPTION

The Microchip Technology Inc. 27C128 is a CMOS 128K bit (electrically) Programmable Read Only Memory. The device is organized as 16K words by 8 bits (16K bytes). Accessing individual bytes from an address transition or from power-up (chip enable pin going low) is accomplished in less than 120 ns. CMOS design and processing enables this part to be used in systems where reduced power consumption and high reliability are requirements.A complete family of packages is offered to provide the most ﬂexibility in applications. For surface mount applications, PLCC, SOIC, or TSOP packaging is available. Tape and reel packaging is also available for PLCC or SOIC packages. UV erasable versions are also available.

A complete family of packages is offered to provide the most ﬂexibility in applications. For surface mount applications, PLCC or SOIC packaging is available. Tape and reel packaging is also available for PLCC or SOIC packages.

PACKAGE TYPES

DIP/SOIC

• 1

V

PP

A12

2

A7

3

A6

4

A5

5

A4

6

A3

7

A2

8

A1

9

A0

10

O0

11

O1

12

O2

13

V

14

SS

PLCC

A7

A12

432

5

A6

6

A5

7

A4

8

A3

9

A2

10

A1

11

A0

12

NC

13

O0

14151617181920

O1

O2

28 27 26 25 24

27C128

23 22 21 20 19 18 17 16 15

PP

V NUVcc

1

323130

27C128

SS

O3O4O5

NU

V

PGM

A13

V

CC

PGM A13 A8 A9 A11 OE A10 CE O7 O6 O5 O4 O3

29 28 27 26 25 24 23 22 21

A8 A9 A11 NC OE A10 CE O7 O6

1996 Microchip Technology Inc. DS11003K-page 1



27C128

µ

±

µ

1.0 ELECTRICAL CHARA CTERISTICS

1.1 Maxim

CC

V

and input voltages w.r.t. V

voltage w.r.t. V

PP

V

um Ratings*

during

SS

........-0.6V to +7.25V

TABLE 1-1: PIN FUNCTION TABLE

A0-A13 Address Inputs

programming..........................................-0.6V to +14V

Voltage on A9 w.r.t. V Output voltage w.r.t. V

......................-0.6V to +13.5V

SS

............... -0.6V to V

CC

+1.0V

Storage temperature ..........................-65˚C to +150˚C

Ambient temp. with power applied .....-65˚C to +125˚C

*Notice: Stresses above those listed under “Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operation listings of this speciﬁcation is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.

O0 - O7 Data Output

TABLE 1-2: READ OPERATION DC CHARACTERISTICS

CC

V

= +5V ( ± 10%) Commercial: Tamb = 0˚C to +70˚C Industrial: Tamb = -40˚C to +85˚C Extended (Automotive): Tamb = -40 ° C to +125 ° C

Name Function

CE OE

PGM

PP

V

CC

V

SS

Chip Enable Output Enable Program Enable Programming Voltage

+5V Power Supply Ground

NC No Connection; No Internal Connec-

tions

NU Not Used; No External Connection Is

Allowed

Parameter Part* Status Symbol Min. Max. Units Conditions

Input Voltages all Logic "1"

Logic "0" Input Leakage all — I Output Voltages all Logic "1"

Logic "0" Output Leakage all — I Input Capacitance all — C

V

IH IL

V

LI

V

OH OL

V

LO

IN

2.0

V

+1

CC

-0.5

0.8

-10 10

V V

AV

2.4

0.45VV

-10 10

AV

— 6 pF V

IN

= 0 to V

I

= -400 µ A

OH

I

OL

= 2.1 mA

OUT

= 0V; Tamb = 25 ° C;

IN

CC

= 0V to V

CC

f = 1 MHz

Output Capacitance all — C

OUT

—12pFV

OUT

= 0V; Tamb = 25 ° C;

f = 1 MHz

Power Supply Current, Active

C

I,E

TTL input TTL input

CC1

I

CC2

I

— —

2025mAmAV

CC

= 5.5V; V f = 1 MHz; OE

= CE = V

I

= 0 mA;

OUT

V

IL

= -0.1 to 0.8V;

IH

V

= 2.0 to V

IL

PP

CC

;

= V

;

CC

Note 1

CC

Power Supply Current, Standby

I

Read Current

PP

V

Read Voltage

PP

* Parts: C=Commercial Temperature Range; I, E=Industrial and Extended Temperature Ranges

C

I, E

all all

all

TTL input TTL input

CMOS input

Read Mode Read Mode

S

I

(

)—

I

PP

V

PP

— —

V

CC

-0.7

2 3

100 100

V

CC

mA mA

ACE AVV

= V

= 5.5V

PP

CC

0.2V

Note 1: Typical active current increases .75 mA per MHz up to operating frequency for all temperature ranges.

DS11003K-page 2

1996 Microchip Technology Inc.

TABLE 1-3: READ OPERATION AC CHARACTERISTICS



27C128

AC Testing Waveform: V Output Load: 1 TTL Load + 100 pF Input Rise and Fall Times: 10 ns Ambient Temperature: Commercial: Tamb = 0˚C to +70˚C

27C128-12 27C128-15 27C128-17 27C128-20 27C128-25

Parameter Sym

Min Max Min Max Min Max Min Max Min Max

Address to Output Delay t CE

to Output Delay t

OE to Output Delay t

or OE to O/P High

CE

— 120 — 150 — 170 — 200 — 250 ns CE

ACC

— 120 — 150 — 170 — 200 — 250 ns OE

CE OE

— 65 — 70 — 70 — 75 — 100 ns CE=V

t

OFF

050050050055060ns

Impedance Output Hold from

Address CE

or OE,

OH

0—0—0—0—0—ns

t

whichever occurs ﬁrst

FIGURE 1-1: READ WAVEFORMS

IH

Address

V VIL

IH

= 2.4V and V

IL

= 0.45V; V

OH

= 2.0V V

OL

= 0.8V

Industrial: Tamb = -40˚C to +85˚C Extended (Automotive): Tamb = -40 ° C to +125 ° C

Units Conditions

Address Valid

=OE=V =V

IL IL

IL

CE

OE

Outputs O0 - O7

Notes:

VIH VIL

tCE(2)

VIH VIL

OH

V

High Z

VOL

tACC

(1) tOFF is specified for OE or CE, whichever occurs first (2) OE may be delayed up to t

CE - tOE after the falling edge of CE without impact on tCE

(3) This parameter is sampled and is not 100% tested.

tOE(2)

Valid Output

tOFF(1,3)

tOH

High Z

1996 Microchip Technology Inc. DS11003K-page 3

27C128

TABLE 1-4: PROGRAMMING DC CHARACTERISTICS

Ambient Temperature: Tamb = 25 ° C ± 5 ° C

CC

V

= 6.5V ± 0.25V, V

Parameter Status Symbol Min Max. Units Conditions

PP

= 13.0V ± 0.25V



µ

Input Voltages Logic”1”

Logic”0” Input Leakage — I Output Voltages Logic”1”

Logic”0” V

Current, program & verify — I

CC

V

PP

Current, program — I A9 Product Identiﬁcation — V Note 1: V

CC

must be applied simultaneously or before V

V

V V

CC2 PP2

IH

LI

OH

OL

2.0

V

CC

+1

V

IL

-0.1

-10 10

2.4

0.8

0.45

V

AV

IN

VVI

OH

I

OL

= 0V to V = -400 µ A

= 2.1 mA

CC

— 20 mA Note 1 — 25 mA Note 1

H

11.5 12.5 V

PP

and removed simultaneously or after V

PP

TABLE 1-5: PROGRAMMING AC CHARACTERISTICS

for Program, Program Verify AC Testing Waveform: V and Program Inhibit Modes Ambient Temperature: Tamb=25°C± 5°C

V

CC= 6.5V ± 0.25V, VPP = VH = 13.0V ± 0.25V

Parameter Symbol Min Max Units Remarks

Address Set-Up Time t Data Set-Up Time t Data Hold Time t Address Hold Time t Float Delay (2) t

CC Set-Up Time tVCS 2—µs

V Program Pulse Width (1) t

Set-Up Time tCES 2—µs

CE

Set-Up Time tOES 2—µs

OE

PP Set-Up Time tVPS 2—µs

V Data Valid from OE Note 1: For express algorithm, initial programming width tolerance is 100 µs ±5%.

2: This parameter is only sampled and not 100% tested. Output ﬂoat is deﬁned as the point where data is no

longer driven (see timing diagram).

=2.4V and V

IH

AS 2—µs

DS 2—µs DH 2—µs AH 0—µs DF 0 130 ns

PW 95 105 µs 100 µs typical

=0.45V; V

IL

=2.0V; V

OH

OL=0.8V

tOE — 100 ns

DS11003K-page 4

1996 Microchip Technology Inc.

Microchip Technology Inc 27C128-25I-SO, 27C128-25I-P, 27C128-17-P, 27C128-17-L, 27C128-15I-SO Datasheet

Specifications and Main Features

Frequently Asked Questions

User Manual

FEATURES

DESCRIPTION

PACKAGE TYPES

1.0 ELECTRICAL CHARA CTERISTICS