White Electronic Designs WS1M32-120G3MA, WS1M32-70G3CA, WS1M32-70G3C, WS1M32-85G3MA, WS1M32-85G3M Datasheet

1Mx32 SRAM MODULE PRELIMINARY*

FEATURES

■Access Time of 70, 85, 100, 120ns

■84 lead, 28mm CQFP, (Package 511)

■Organized as two banks of 512Kx32, User Configurable as 1Mx16 or 2Mx8

■Commercial, Industrial and Military Temperature Ranges

WS1M32-XG3X

■TTL Compatible Inputs and Outputs

■5 Volt Power Supply

■Low Power CMOS

■Weight - 20 grams typical

*This data sheet describes a product under development, not fully characterized, and is subject to change without notice.

PIN CONFIGURATION FOR WS1M32-XG3X

TOP VIEW

PIN DESCRIPTION

GND

I/O31 I/O30

I/O29

I/O28

I/O27

I/O26

I/O25

I/O24

NC

NC

NC I/O23 I/O22 I/O21 I/O20 I/O19 I/O18 I/O17 I/O16

VCC

I/O0-31

Data Inputs/Outputs

A0-18

Address Inputs

11 10 9

8

7

6

5

4

3

2

1

84 83 82 81 80 79 78 77 76 75

1-4

Write Enables

WE

12

74

VCC

GND

CS1-2

Chip Selects

13

73

A0

NC

1-4

Output Enables

A1

14

72

NC

OE

A2

15

71

NC

VCC

Power Supply

A3

16

70

NC

A4

17

69

NC

GND

Ground

18

68

A5

NC

NC

Not Connected

A6

19

67

NC

OE

1

20

66

NC

OE

2

21

65

WE

4

OE

3

22

64

WE

3

BLOCK DIAGRAM

OE

4

23

63

WE

2

NC

24

62

1

WE

A7

25

61

NC

OE1 WE1

OE2 WE2

OE3

WE3

OE4 WE4

A8

26

60

NC

A9

27

59

A18

A10

28

58

A17

CS

1

A11

29

57

A16

A12

30

56

A15

A0-18

A13

31

55

A14

2M x

8

2M x

8

GND

32

54

2M x

8

512K x 8

VCC

512K x 8

512K x 8

512K x 8

512K x 8

512K x 8

512K2M x 8

512K x 8

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53

8

8

8

8

VCC

I/O0 I/O1

I/O2

I/O3

I/O4

I/O5

I/O6

I/O7

CS1

NC

CS2 I/O8 I/O9 I/O10 I/O11 I/O12 I/O13 I/O14 I/O15

GND

CS2

I/O0-7

I/O8-15

I/O16-23

I/O24-31

NOTE: CS1& CS2 are used as bank select

The White 84 lead G3 CQFP fills the same fit and function as the JEDEC 84 lead CQFJ or 84 PLCC.

But the G3 has the TCE and lead inspection advantage of the CQFP form.

1.146"

4

MODULES SRAM

May 2001 Rev. 2	1	White Electronic Designs Corporation • [phone] • www.whiteedc.com

WS1M32-XG3X

4

MODULES SRAM

ABSOLUTE MAXIMUM RATINGS

Parameter	Symbol	Min	Max	Unit
Operating Temperature	TA	-40	+85	°C
Storage Temperature	TSTG	-65	+150	°C
Signal Voltage Relative to GND	VG	-0.5	Vcc + 0.5	V
Junction Temperature	TJ		150	°C
Supply Voltage	VCC	-0.5	7.0	V

RECOMMENDED OPERATING CONDITIONS

Parameter	Symbol	Min	Max	Unit
Supply Voltage	VCC	4.5	5.5	V
Input High Voltage	VIH	2.2	VCC + 0.3	V
Input Low Voltage	VIL	-0.5	+0.8	V
Operating Temp (Ind.)	TA	-40	+85	°C

CAPACITANCE

(TA = +25°C)

	Parameter						Symbol	Conditions	Max	Unit
					1-4 capacitance		COE	VIN = 0 V, f = 1.0 MHz	30	pF
			OE
						1-4 capacitance	CWE	VIN = 0 V, f = 1.0 MHz	30	pF
	WE
				1-2 capacitance			CCS	VIN = 0 V, f = 1.0 MHz	30	pF
		CS
	Data I/O capacitance						CI/O	VI/O = 0 V, f = 1.0 MHz	30	pF
	Address input capacitance						CAD	VIN = 0 V, f = 1.0 MHz	100	pF

This parameter is guaranteed by design but not tested.

TRUTH TABLE

CS1

CS2

OE

WE

Mode

Data I/O

Power

H

H

X

X

Standby

High Z

Standby

L

H

L

H

Read

Data Out

Active

L

H

H

H

Out Disable

High Z

Active

L

H

X

L

Write

Data In

Active

H

L

L

H

Read

Data Out

Active

H

L

H

H

Out Disable

High Z

Active

H

L

X

L

Write

Data In

Active

L

L

X

X

Invalid State

Invalid State

Invalid State

DC CHARACTERISTICS

(VCC = 5.0V, GND = 0V, TA = -55°C to +125°C)

Parameter

Symbol

Conditions

Min

Max

Units

Input Leakage Current

ILI

VCC = 5.5, VIN = GND to VCC

10

A

Output Leakage Current

ILO

= VIH,

= VIH, VOUT = GND to VCC

10

A

CS

OE

Operating Supply Current x 32 Mode

ICC x 32

= VIL,

= VIH, f = 5MHz, Vcc = 5.5

220

mA

CS

OE

Standby Current

ISB

= VIH,

= VIH, f = 5MHz, Vcc = 5.5

10

mA

CS

OE

Standby Current (Low Power)

ISB2

= VIH, OE = VIH, f = 5MHz, Vcc = 5.5

900

A

CS

Output Low Voltage

VOL

IOL = 8mA, Vcc = 4.5

0.4

V

Output High Voltage

VOH

IOH = -4.0mA, Vcc = 4.5

2.4

V

NOTE: DC test conditions: VIH = VCC -0.3V, VIL = 0.3V

White Microelectronics • Phoenix, AZ • [phone]

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