TC55VBM416AFTN55

2002-08-29

1/14

TENTATIVE

TOSHIBA MOS DIGITAL INTEGRATED CIRCUIT SILICON GATE CMOS

1,048,576-WORD BY 16-BIT/2,097,152-WORD BY 8-BIT FULL CMOS STATIC RAM

DESCRIPTION

The TC55VBM416AFTN is a 16,777,216-bit static random access memory (SRAM) organized as 1,048,576 words

by 16 bits/2,097,152 words by 8 bits. Fabricated using Toshiba's CMOS Silicon gate process technology, this device

operates from a single 2.3 to 3.6 V power supply. Advanced circuit technology provides both high speed and low

power at an operating current of 3 mA/MHz and a minimum cycle time of 55 ns. It is automatically placed in

high or (CE2) is asserted low. There are three control inputs. CE1 and CE2 are used to select the device and for

data retention control, and output enable ( OE ) provides fast memory access. Data byte control pin ( LB , UB )

provides lower and upper byte access. This device is well suited to various microprocessor system applications

where high speed, low power and battery backup are required. And, with a guaranteed operating extreme

temperature range of −40° to 85°C, the TC55VBM416AFTN can be used in environments exhibiting extreme

temperature conditions. The TC55VBM416AFTN is available in a plastic 48-pin thin-small-outline package

(TSOP).

FEATURES

• Low-power dissipation

Operating: 9 mW/MHz (typical)

• Single power supply voltage of 2.3 to 3.6 V

• Power down features using CE1 and CE2

• Data retention supply voltage of 1.5 to 3.6 V

• Direct TTL compatibility for all inputs and outputs

• Wide operating temperature range of −40° to 85°C

• Standby Current (maximum):

3.6 V

15

µA

3.0 V

8

µA

PIN NAMES

48 PIN TSOP

A0~A19

Address Inputs (Word Mode)

A-1~A19

Address Inputs (Byte Mode)

1

CE

, CE2

Chip Enable

R/W

Read/Write Control

OE

Output Enable

Data Byte Control

I/O1~I/O16

Data Inputs/Outputs

BYTE

Byte (

×8 mode) Enable

Power

GND

Ground

NC

No Connection

OP*

Option

*: OP pin must be open or connected to GND.

Pin No.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Pin Name

A15

A14

A13

A12

A11

A10

A9

A8

A19

NC

R/W

CE2

OP

UB

LB

A18

Pin No.

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

Pin Name

A17

A7

A6

A5

A4

A3

A2

A1

A0

1

CE

GND

OE

I/O1

I/O9

I/O2

I/O10

Pin No.

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

Pin Name

I/O3

I/O11

I/O4

I/O12

I/O5

I/O13

I/O6

I/O14

I/O7

I/O15

I/O8

I/O16

/A-1

GND

BYTE

A16

• Access Times (maximum):

Access Time

55 ns

1

CE

Access Time

55 ns

CE2

Access Time

55 ns

OE

Access Time

30 ns

• Package:

TSOPⅠ48-P-1220-0.50

(Weight:0.51 g typ)

(Normal)

25

48

24

1