OKI MSC23CV43257A-60BS8, MSC23CV43257A-70BS8 Datasheet

Preliminary

MSC23CV43257A-xxBS8¡ Semiconductor

¡ Semiconductor

MSC23CV43257A-xxBS8

4,194,304-Word ¥ 32-Bit DRAM MODULE : FAST PAGE MODE TYPE WITH EDO

DESCRIPTION

The Oki MSC23CV43257A-xxBS8 is a fully decoded 4,194,304-word ¥ 32-bit CMOS dynamic
random access memory composed of eight 16-Mb DRAMs (4M ¥ 4) in TSOP packages mounted
with decoupling capacitors on a 72-pin glass epoxy Small Outline DIMM Package supports any
application where high density and large capacity of storage memory are required.

FEATURES

• 4,194,304-word ¥ 32-bit organization

• 72-pin Small Outline DIMM

• Single 3.3 V supply ±0.3 V tolerance

• Input : LVTTL compatible

• Output : LVTTL compatible, 3-state

• Refresh : 2048 cycles/32 ms

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

• Multi-bit test mode capability

• Fast Page Mode with EDO capability

PRODUCT FAMILY

Family

MSC23CV43257A-60BS8

MSC23CV43257A-70BS8

Access Time (Max.)

RAC

60 ns

70 ns

t

AA

30 ns

35 ns

t

CAC

15 ns

20 ns

Cycle Time

(Min.)

110 ns

130 ns

Power Dissipation

Operating (Max.)

3456 mW

3168 mW

Standby (Max.)t

28.8 mW

345

MSC23CV43257A-xxBS8 ¡ Semiconductor

PIN CONFIGURATION

MSC23CV43257A-xxBS8

(Unit : mm)

3.80 Max.

25.4 ±0.13

3.18 ±0.13

2.0 ±0.13

R2.0

17.78 ±0.13

1.8 ±0.1

2 – φ1.8

3.03

2.62 Typ.

*1

44.45 ±0.1

59.69 ±0.2

44.45 ±0.1

51.66 ±0.1

711

272

3.25 Typ.

5.00

R2.0

5.5 Min.

1.00 ±0.1

1.0 ±0.1

0.25 Max.

0.23 Min.

1.27 ±0.1

346

*1 The common size difference of the board width 19.78 mm of its height is

specified as ±0.2. The value above 19.78 mm is specified as ±0.5.

Pin Configuration

MSC23CV43257A-xxBS8¡ Semiconductor

Pin No.

Pin Name

11631

2 173247

3 183348

4 193449

5 203550

6 213651

7 223752

8 233853

9 243954

10 25 40 55

11 26 41 56

12 27 42 57

13 28 43 58

14 29 44 59

15 30 45 60

V

SS

DQ0 A5 A9 WE

DQ1 A6 NC NC

DQ2 A10

DQ3 NC DQ15 DQ19

DQ4 DQ8 NC DQ20

DQ5 DQ9 DQ16 DQ21

DQ6 DQ10 DQ17 DQ22

DQ7 DQ11 V

V

CC

PD1 DQ13 CAS2 DQ24

A0 DQ14 CAS3 DQ25
A1 A7 CAS1 DQ26
A2 NC RAS0 DQ27

A3 V

Pin No.

Pin Name

A4 A8 NC

Pin No.

Pin Name

Pin No.

46

RAS2 DQ18

SS

DQ12 CAS0 NC

CC

NC DQ28

Pin Name

DQ23

Presence Detect Pins

Pin No.

61

62

63

64

65

66

67

68

69

70

71

72

Pin Name

V

CC

DQ29

DQ30

DQ31

NC

PD2

PD3

PD4

PD5

PD6

PD7

V

SS

Pin No.

67 PD3

Pin Name

MSC23CV43257A

-60BS8

V

SS

NC69 PD5

MSC23CV43257A

-70BS8

NCNC11 PD1

NCNC66 PD2

V

SS

NCNC68 PD4

V

SS

NCNC70 PD6

NCNC71 PD7

347