OKI MSM51V16800BSL-60JS, MSM51V16800B-70TS-K, MSM51V16800B-60TS-K, MSM51V16800B-50JS, MSM51V16800BSL-70TS-K Datasheet

353

¡ Semiconductor MSM51V16800B/BSL

DESCRIPTION

The MSM51V16800B/BSL is a 2,097,152-word ¥ 8-bit dynamic RAM fabricated in Oki's silicon-gate

CMOS technology. The MSM51V16800B/BSL achieves high integration, high-speed operation, and

low-power consumption because Oki manufactures the device in a quadruple-layer polysilicon/

double-layer metal CMOS process. The MSM51V16800B/BSL is available in a 28-pin plastic SOJ or

28-pin plastic TSOP. The MSM51V16800BSL (the self-refresh version) is specially designed for

lower-power applications.

FEATURES

• 2,097,152-word ¥ 8-bit configuration

• Single 3.3 V power supply, ±0.3 V tolerance

• Input : LVTTL compatible, low input capacitance

• Output : LVTTL compatible, 3-state

• Refresh : 4096 cycles/64 ms, 4096 cycles/128 ms (SL version)

• Fast page mode, read modify write capability

• CAS before RAS refresh, hidden refresh, RAS-only refresh capability

• CAS before RAS self-refresh capability (SL version)

• Multi-bit test mode capability

• Package options:

28-pin 400 mil plastic SOJ (SOJ28-P-400-1.27)

(Product : MSM51V16800B/BSL-xxJS)

28-pin 400 mil plastic TSOP (TSOPII28-P-400-1.27-K)

(Product : MSM51V16800B/BSL-xxTS-K)

xx indicates speed rank.

PRODUCT FAMILY

¡ Semiconductor

MSM51V16800B/BSL

2,097,152-Word ¥ 8-Bit DYNAMIC RAM : FAST PAGE MODE TYPE

MSM51V16800B/BSL-70

70 ns

130 ns

90 ns

288 mW

396 mW

Family

Access Time (Max.)

Cycle Time

(Min.)

Standby (Max.)

Power Dissipation

MSM51V16800B/BSL-50

t

RAC

50 ns

35 ns

t

AA

25 ns

20 ns

t

CAC

13 ns

20 ns

t

OEA

13 ns

MSM51V16800B/BSL-60

60 ns

110 ns 324 mW

30 ns 15 ns 15 ns

Operating (Max.)

1.8 mW/

0.72 mW (SL version)

E2G0074-17-41

354

MSM51V16800B/BSL ¡ Semiconductor

PIN CONFIGURATION (TOP VIEW)

3

4

5

9

10

11

12

13

DQ2

DQ3

DQ4

A10R

A0

A1

A2

A3

26

25

24

20

19

18

17

16

DQ7

DQ6

DQ5

A8

A7

A6

A5

A4

2

DQ1 27 DQ8

1

V

CC

28 V

SS

28-Pin Plastic SOJ

3

4

5

9

10

11

12

13

26

25

24

20

19

18

17

16

2

27

1

28

28-Pin Plastic TSOP

(K Type)

6WE 23 CAS 23

8A11R 21 A9R 21

6

8

7RAS 22 OE 227

14V

CC

15 V

SS

14 15

DQ2

DQ3

DQ4

A10R

A0

A1

A2

A3

DQ1

V

CC

WE

A11R

RAS

V

CC

DQ7

DQ6

DQ5

A8

A7

A6

A5

A4

DQ8

V

SS

CAS

A9R

OE

V

SS

Pin Name Function

A0 - A8,

Address Input

RAS Row Address Strobe

CAS Column Address Strobe

DQ1 - DQ8 Data Input/Data Output

OE Output Enable

WE Write Enable

V

CC

Power Supply (3.3 V)

V

SS

Ground (0 V)

A9R - A11R

Note : The same power supply voltage must be provided to every V

CC

pin, and the same GND

voltage level must be provided to every V

SS

pin.

355

¡ Semiconductor MSM51V16800B/BSL

BLOCK DIAGRAM

Timing

Generator

Refresh

Control Clock

Column

Address

Buffers

Internal

Address

Counter

Row

Address

Buffers

Row

Deco-

ders

Word

Drivers

Memory

Cells

Sense Amplifiers

Column Decoders

I/O

Controller

I/O

Selector

Output

Buffers

Input

Buffers

On Chip

V

BB

Generator

V

CC

DQ1 - DQ8

CAS

WE

A0 - A8

99

8

8

8

8

88

12

9

OE

RAS

V

SS

3

A9R - A11R