© 1996 Microchip Technology Inc.

Preliminary

DS21132C-page 3

93C76/86

TABLE 1-3:

AC CHARACTERISTICS

TABLE 1-4:

INSTRUCTION SET FOR 93C76: ORG=1 (X16 ORGANIZATION)

TABLE 1-5:

INSTRUCTION SET FOR 93C76: ORG=0 (X8 ORGANIZATION)

Applicable over recommended operating ranges shown below unless otherwise noted:

Commercial (C):

Tamb = 0

°C to -40°C

Industrial (I):

Tamb = -40

°C to +85°C

Automotive (E):

Tamb = -40

°C to +125°C

Parameter

Symbol

Min.

Max.

Units

Conditions

Clock frequency

—

2

MHz

Vcc

≥ 4.5V

Clock high time

300

—

ns

Clock low time

200

—

ns

Chip select setup time

50

—

ns

Relative to CLK

Chip select hold time

0—

ns

Chip select low time

250

—

ns

Relative to CLK

Data input setup time

100

—

ns

Relative to CLK

Data input hold time

100

—

ns

Relative to CLK

Data output delay time

—

400

ns

Data output disable time

—

100

ns

(Note 1)

Status valid time

—

500

ns

Program cycle time

—10

ms

ERASE/WRITE mode (Note 2)

—

15

ms

ERAL mode

—

30

ms

WRAL mode

Endurance

—

10M

—

cycles

25

(Note 3)

Note 1: This parameter is periodically sampled and not 100% tested.

2: Typical program cycle is 4 ms per word.

3: This parameter is not tested but guaranteed by characterization. For endurance estimates in a specific appli-

cation, please consult the Total Endurance Model which can be obtained on our BBS or website.

Instruction

SB

Opcode

Address

Data In

Data Out

Req. CLK Cycles

READ

1

10

X A8 A7 A6 A5 A4 A3 A2 A1 A0

—

D15 - D0

29

EWEN

1

00

1 1 X X X X X X X X

—

High-Z

13

ERASE

1

11

X A8 A7 A6 A5 A4 A3 A2 A1 A0

—

(RDY/BSY)

13

ERAL

1

00

1 0 X X X X X X X X

—

(RDY/BSY)

13

WRITE

1

01

X A8 A7 A6 A5 A4 A3 A2 A1 A0

D15 - D0

(RDY/BSY)

29

WRAL

1

00

0 1 X X X X X X X X

D15 - D0

(RDY/BSY)

29

EWDS

1

00

0 0 X X X X X X X X

—

High-Z

13

Instruction

SB

Opcode

Address

Data In

Data Out

Req. CLK

Cycles

READ

1

10

X A9 A8 A7 A6 A5 A4 A3 A2 A1 A0

—

D7 - D0

22

EWEN

1

00

1 1 X X X X X X X X X

—

High-Z

14

ERASE

1

11

X A9 A8 A7 A6 A5 A4 A3 A2 A1 A0

—

(RDY/BSY)

14

ERAL

1

00

1 0 X X X X X X X X X

—

(RDY/BSY)

14

WRITE

1

01

X A9 A8 A7 A6 A5 A4 A3 A2 A1 A0

D7 - D0

(RDY/BSY)

22

WRAL

1

00

0 1 X X X X X X X X X

D7 - D0

(RDY/BSY)

22

EWDS

1

00

0 0 X X X X X X X X X

—

High-Z

14