Microchip Technology Inc 27LV64-30I-P, 27LV64-30I-L, 27LV64-30-SO, 27LV64-30-P, 27LV64-25I-SO Datasheet

...

0 (0)

27LV64

64K (8K x 8) Low-Voltage CMOS EPROM

FEATURES

•Wide voltage range 3.0V to 5.5V

•High speed performance

-200 ns access time available at 3.0V

•CMOS Technology for low power consumption

-8 mA active current at 3.0V

-20 mA active current at 5.5V

-100 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 8K 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

DESCRIPTION

The Microchip Technology Inc. 27LV64 is a low-voltage (3.0 volt) CMOS EPROM designed for battery powered applications. The device is organized as 8K x 8 (8KByte) non-volatile memory product. The 27LV64 consumes only 8mA maximum of active current during a 3.0 volt read operation therefore improving battery performance. This device is designed for very low voltage applications where conventional 5.0 volt only EPROMs can not be used. Accessing individual bytes from an address transition or from power-up (chip enable pin going low) is accomplished in less than 200 ns at 3.0V.This device allows system designers the ability to use low voltage non-volatile memory with today’s low voltage microprocessors and peripherals in battery powered applications.

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

VPP	• 1		28	VCC
A12	2		27
A12	2		27	PGM
A7	3		26	NC
A6	4		25	A8
A5	5	27LV64	24	A9
A4	6	27LV64	23	A11
A4	6		23	A11
A3	7		22
A3	7		22	OE
A2	8		21	A10
A1	9		20
A1	9		20	CE
A0	10		19	O7
O0	11		18	O6
O1	12		17	O5
O2	13		16	O4
VSS	14		15	O3

PLCC

	A7	A12	VPP	NU	Vcc	PGM	NC
	4	3	2	1	32	31	30
A6	5						29	A8
A5	6						28	A9
A4	7			27LV64			27	A11
A3	8						26	NC
A2	9						25	OE
A1	10						24	A10
A0	11						23	CE
A0	11						23	CE
NC	12						22	O7
O0	13						21	O6
	14	15	16	17	18	19	20
	O1	O2	VSS	NU	O3	O4	O5

1996 Microchip Technology Inc.

DS11024E-page 1

27LV64

1.0ELECTRICAL CHARACTERISTICS

1.1Maximum Ratings*

VCC and input voltages w.r.t. VSS .......	-0.6V to + 7.25V
VPP voltage w.r.t. VSS during
programming ..........................................	-0.6V to +14V
Voltage on A9 w.r.t. VSS ......................	-0.6V to +13.5V
Output voltage w.r.t. VSS ...............	-0.6V to VCC +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.

TABLE 1-1: PIN FUNCTION TABLE

Name			Function


A0-A12			Address Inputs
			Chip Enable
		CE
			Output Enable
		OE
			Program Enable
	PGM
	VPP		Programming Voltage
O0 - O7			Data Output
	VCC		+5V Or +3V Power Supply
	VSS		Ground
		NC	No Connection; No Internal Connec-
			tions
		NU	Not Used; No External Connection Is
			Allowed

TABLE 1-2:

READ OPERATION DC CHARACTERISTICS

VCC = 3.0V to 5.5V unless otherwise speciﬁed

Commercial:

Tamb = 0˚C to +70˚C

Industrial:

Tamb = -40˚C to +85˚C

Parameter

Part*

Status

Symbol

Min.

Max.

Units

Conditions

Input Voltages

all

Logic "1"

VIH

2.0

VCC+1

Logic "0"

VIL

-0.5

0.8

Input Leakage

all

—

I LI

-10

VIN = 0 to VCC

Output Voltages

all

Logic "1"

VOH

2.4

IOH = -400 A

Logic "0"

VOL

0.45

IOL = 2.1 mA

Output Leakage

all

—

I LO

-10

VOUT = 0V to VCC

Input Capacitance

all

—

C IN

—

V IN = 0V; Tamb = 25°C;

f = 1 MHz

Output Capacitance

all

—

C OUT

—

V OUT = 0V; Tamb = 25°C;

f = 1 MHz

Power Supply Current,

TTL input

ICC1

—

20 @ 5.0V

VCC = 5.5V; VPP = VCC

Active

8 @ 3.0V

f = 1 MHz;

TTL input

ICC2

—

25 @ 5.0V

= VIL;

10 @ 3.0V

IOUT = 0 mA;

VIL = -0.1 to 0.8V;

VIH = 2.0 to VCC;

Note 1

Power Supply Current,

TTL input

ICC(S)

—

1 @ 3.0V

Standby

TTL input

2@ 3.0V

all

CMOS input

100 @ 3.0V

= VCC ± 0.2V

* Parts: C=Commercial Temperature Range; I=Industrial Temperature Range

Note 1: Typical active current increases .5 mA per MHz up to operating frequency for all temperature ranges.

DS11024E-page 2

1996 Microchip Technology Inc.

27LV64

TABLE 1-3:

READ OPERATION AC CHARACTERISTICS

AC Testing Waveform:

VIH = 2.4V and VIL = 0.45V; VOH = 2.0V VOL = 0.8V

Output Load:

1 TTL Load + 100 pF

Input Rise and Fall Times:

10 ns

Ambient Temperature:

Commercial:

Tamb = 0˚C to +70˚C

Industrial:

Tamb = -40˚C to +85˚C

Parameter

Sym

27LV64-20

27LV64-25

27LV64-30

Units

Conditions

Min.

Max.

Min.

Max.

Min.

Max.

Address to Output Delay

tACC

—

200

—

250

—

300

= VIL

to Output Delay

tCE

—

200

—

250

—

300

= VIL

to Output Delay

tOE

—

100

—

125

—

125

= VIL

to O/P High

tOFF

Impedance

Output Hold from Address

tOH

—

OE,

whichever goes ﬁrst

FIGURE 1-1: READ WAVEFORMS

Address

VIH

Address Valid

VIL

VIH

VIL

tCE(2)

VIH

VIL

tOFF(1,3)

tOE(2)

tOH

Outputs

VOH

High Z

Valid Output

O0 - O7

VOL

tACC

Notes: (1) tOFF is specified for OE or CE, whichever occurs first

(2)OE may be delayed up to tCE - t OE after the falling edge of CE without impact on tCE

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

1996 Microchip Technology Inc.

DS11024E-page 3

27LV64

TABLE 1-4: PROGRAMMING DC CHARACTERISTICS

			Ambient Temperature: Tamb = 25°C ± 5°C
			VCC = 6.5V ± 0.25V, VPP = VH = 13.0V ± 0.25V

Parameter	Status	Symbol	Min.	Max.	Units	Conditions


Input Voltages	Logic”1”	VIH	2.0	VCC+1	V
	Logic”0”	VIL	-0.1	0.8	V

Input Leakage	—	I LI	-10	10	A	VIN = 0V to VCC

Output Voltages	Logic”1”	VOH	2.4		V	IOH = -400 A
	Logic”0”	VOL		0.45	V	IOL = 2.1 mA

VCC Current, program & verify	—	I CC2	—	20	mA	Note 1

VPP Current, program	—	I PP2	—	25	mA	Note 1

A9 Product Identiﬁcation	—	VH	11.5	12.5	V

Note 1: VCC must be applied simultaneously or before VPP and removed simultaneously or after VPP.

TABLE 1-5:

PROGRAMMING AC CHARACTERISTICS

for Program, Program Verify

AC Testing Waveform:

VIH=2.4V and VIL=0.45V; VOH=2.0V; VOL=0.8V

and Program Inhibit Modes

Ambient Temperature:

Tamb=25°C ± 5°C

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

Parameter

Symbol

Min.

Max.

Units

Remarks

Address Set-Up Time

tAS

—

Data Set-Up Time

tDS

—

Data Hold Time

tDH

—

Address Hold Time

tAH

—

Float Delay (2)

tDF

130

VCC Set-Up Time

tVCS

—

Program Pulse Width (1)

tPW

105

100 s typical

Set-Up Time

tCES

—

Set-Up Time

tOES

—

VPP Set-Up Time

tVPS

—

Data Valid from

tOE

100

Note 1: For express algorithm, initial programming width tolerance is 100 s ±5%.

Note 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).

DS11024E-page 4

1996 Microchip Technology Inc.

+ 8 hidden pages