M29F002B datasheet(11/29 Pages) STMICROELECTRONICS

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AI01275B

High Speed

1.5V

2.4V

Standard

0.45V

2.0V

0.8V

Figure 4. AC Testing Input Output Waveform

AI01276B

1.3V

OUT

CL = 30pF for High Speed

CL = 100pF for Standard

CL includes JIG capacitance

3.3k

Ω

1N914

DEVICE

UNDER

TEST

Figure 5. AC Testing Load Circuit

Symbol

Parameter

Test Condition

Min

Max

Unit

CIN

Input Capacitance

VIN =0V

COUT

Output Capacitance

VOUT =0V

Note: 1. Sampled only, not 100% tested.

Table 12. Capacitance(1) (TA =25

°C, f = 1 MHz )

Auto Select (AS) Instruction. This instruction

uses the two Coded cycles followed by one write

cycle giving the command 90h to address 555h for

command set-up. Asubsequentread will output the

manufacturer code and the device code or the

block protection status depending on the levels of

A0 and A1. The manufacturer code, 20h, is output

when the addresses lines A0 and A1 are Low, the

device code is output when A0 is High with A1 Low.

The AS instruction also allows access to the block

protectionstatus. After giving the AS instruction, A0

is set to VIL with A1 at VIH, while A13-A17 define

the address of the block to be verified. A read in

these conditions will output a 01h if the block is

protected and a 00h if the block is not protected.

Program (PG) Instruction. This instruction uses

four write cycles. The Program command A0h is

written to address 555h on the third cycle after two

Coded cycles. A fourth write operation latches the

Address on the falling edge of W or E and the Data

to be written on the rising edge and starts the

P/E.C. Read operations output the Status Register

bits after the programming has started. Memory

programming is made only by writing ’0’ in place of

’1’. Status bits DQ6 and DQ7 determine if program-

ming is on-goingand DQ5 allows verification of any

possible error. Programming at an address not in

blocks being erased is also possible during erase

suspend. In this case, DQ2 will toggle at the ad-

dress being programmed.

High Speed

Standard

Input Rise and Fall Times

≤ 10ns

Input Pulse Voltages

0 to 3V

0.45V to 2.4V

Input and Output Timing Ref. Voltages

1.5V

0.8V and 2V

Table 11. AC Measurement Conditions

11/29

M29F002T, M29F002NT, M29F002B

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