ST93C46TM3TR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST93C46TM3TR

1K (64 x 16 or 128 x 8) SERIAL MICROWIRE EEPROM

STMicroelectronics 

ST93C46A/46C/46T, ST93C47C/47T

Table 2. Absolute Maximum Ratings (1)

Symbol

Parameter

Value

Unit

TA

Ambient Operating Temperature

–40 to 125

°C

TSTG Storage Temperature

–65 to 150

°C

TLEAD Lead Temperature, Soldering

(SO8 package)

(PSDIP8 package)

40 sec

10 sec

215

260

°C

VIO

Input or Output Voltages (Q = VOH or Hi-Z)

–0.3 to VCC +0.5

V

VCC

Supply Voltage

–0.3 to 6.5

V

VESD

Electrostatic Discharge Voltage (Human Body model) (2)

ST93C46A,T

ST93C46C

2000

4000

V

Electrostatic Discharge Voltage (Machine model) (3)

ST93C46

500

V

Notes: 1. Except for the rating ”Operating Temperature Range”, stresses above those listed in the Table ”Absolute Maximum Ratings”

may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other

conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum

Rating conditions for extended periods may affect device reliability. Refer also to the SGS-THOMSON SURE Program and other

relevant quality documents.

2. MIL-STD-883C, 3015.7 (100pF, 1500 Ω).

3. EIAJ IC-121 (Condition C) (200pF, 0 Ω).

Figure 2A. DIP Pin Connections

Figure 2B. SO Pin Connections

ST93C46

ST93C47

S1

C2

8 VCC

7 DU

D3

6 ORG

Q4

5 VSS

AI00872C

Warning: DU = Don’t Use

Figure 2C. SO, 90° Turn, Pin Connections

DU

VCC

S

C

ST93C46T

ST93C47T

1

8

2

7

3

6

4

5

AI00982B

ORG

VSS

Q

D

Warning: DU = Don’t Use

2/13

ST93C46

ST93C47

S1

C2

8 VCC

7 DU

D3

6 ORG

Q4

5 VSS

AI00874C

Warning: DU = Don’t Use

DESCRIPTION (cont’d)

The 1K bit memory is divided into either 128 x 8 bit

bytes or 64 x 16 bit words. The organization may

be selected by a signal on the ORG input. The

memory is accessed by a set of instructions which

includes Read a byte/word, Write a byte/word,

Erase a byte/word, Erase All and Write All.

A Read instruction loads the address of the first

byte/word to be read into an internal address

pointer. The data is then clocked out serially.

The address pointer is automatically incremented

after the data is output and, if the Chip Select input

(S) is held High, the ST93C46 can output a sequen-

tial stream of data bytes/words. In this way, the

memory can be read as a data stream from 8 to

1024 bits long, or continuously as the address

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