HM514170D View Datasheet(PDF) - Hitachi -> Renesas Electronics

Part Name

Description

Manufacturer

HM514170D

262,144-word × 16-bit Dynamic RAM

Hitachi -> Renesas Electronics 

Pin Arrangement

HM51(S)4170D Series, HM51(S)4270D Series

HM514270DJ/DLJ Series

HM51S4270DJ/DLJ Series

VCC

I/O0

I/O1

I/O2

I/O3

VCC

I/O4

I/O5

I/O6

I/O7

NC

LWE

UWE

RAS

NC

A0

A1

A2

A3

VCC

1

40

2

39

3

38

4

37

5

36

6

35

7

34

8

33

9

32

10

31

11

30

12

29

13

28

14

27

15

26

16

25

17

24

18

23

19

22

20

21

(Top view)

VSS

I/O15

I/O14

I/O13

I/O12

VSS

I/O11

I/O10

I/O9

I/O8

NC

NC

CAS

OE

A8

A7

A6

A5

A4

VSS

Pin Description

Pin name Function

A0 to A8

Address input

— Refresh address A0 to A8

— Row address A0 to A8

— Column address A0 to A8

I/O0 to I/O15 Data input/output

RAS

Row address strobe

CAS

Column address strobe

UWE / LWE Read/write enable

OE

Output enable

VCC

Power supply

VSS

Ground

NC

No connection

HM514270DTT/DLTT Series

HM51S4270DTT/DLTT Series

VCC 1

I/O0 2

I/O1 3

I/O2 4

I/O3 5

VCC 6

I/O4 7

I/O5 8

I/O6 9

I/O7 10

44 VSS

43 I/O15

42 I/O14

41 I/O13

40 I/O12

39 VSS

38 I/O11

37 I/O10

36 I/O9

35 I/O8

NC

LWE

UWE

RAS

NC

A0

A1

A2

A3

VCC

13

32

14

31

15

30

16

29

17

28

18

27

19

26

20

25

21

24

22

23

(Top view)

NC

NC

CAS

OE

A8

A7

A6

A5

A4

VSS

5

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