6.42

IDT70261S/L

High-Speed 16K x 16 Dual-Port Static RAM with Interrupt

Industrial and Commercial Temperature Ranges

2

Pin Names

NOTES:

2. All GND pins must be connected to ground supply.

3. Package body is approximately 14mm x 14mm x 1.4mm.

4. This package code is used to reference the package diagram.

5. This text does not indicate orientation of the actual part-marking.

Description

The IDT70261 is a high-speed 16K x 16 Dual-Port Static RAM. The

IDT70261 is designed to be used as a stand-alone Dual-Port RAM or as

a combination MASTER/SLAVE Dual-Port RAM for 32-bit-or-more word

systems.UsingtheIDTMASTER/SLAVEDual-PortRAMapproachin32-

bit or wider memory system applications results in full-speed, error-free

operation without the need for additional discrete logic.

This device provides two independent ports with separate control,

address, and I/O pins that permit independent, asynchronous access for

reads or writes to any location in memory. An automatic power down

feature controlled by

CEpermitstheon-chipcircuitryofeachporttoenter

a very low standby power mode.

Fabricated using IDT’s CMOS high-performance technology, these

devices typically operate on only 750mW of power.

The IDT70261 is packaged in a 100-pin TQFP.

Index

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

75

74

73

72

71

70

69

68

67

66

65

64

63

62

61

60

59

58

57

56

55

54

53

52

51

26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76

N/C

N/C

N/C

N/C

GND

GND

N/C

N/C

N/C

N/C

3039 drw 02

N/C

N/C

N/C

GND

M/

S

N/C

N/C

N/C

IDT70261PF

100-Pin TQFP

,

Left Port

Right Port

Names

Chip Enable

R/

R/

Read/Write Enable

Output Enable

Address

Data Input/Output

Semaphore Enable

Upper Byte Select

Lower Byte Select

Interrupt Flag

Busy Flag

M/

S

Master or Slave Select

Power

GND

Ground

3039 tbl 01