HIT HM62256AFP-10T, HM62256AFP-12T, HM62256AFP-15T, HM62256AFP-8T, HM62256ALFP-10SLT Datasheet

HM62256A Series

32,768-word × 8-bit High Speed CMOS Static RAM

Maintenance only

The Hitachi HM62256A is a CMOS static RAM
organized 32-kword × 8-bit. It realizes higher
performance and low power consumption by
employing 0.8 µm Hi-CMOS process technology.
The device, packaged in a 8 × 14 mm TSOP with
thickness of 1.2 mm, 450-mil SOP (foot print pitch
width), 600-mil plastic DIP, or 300-mil plastic DIP,
is available for high density mounting. TSOP
package is suitable for cards, and reverse type
TSOP is also provided. It offers low power
standby power dissipation; therefore, it is suitable
for battery back up system.

Features

• High speed: Fast Access time 85/100/120/150 ns
(max)

• Low Power
Standby: 5 µW (typ) (L/L-SL version)
Operation: 40 mW (typ) (f = 1 MHz)

• Single 5 V supply

• Completely static memory
No clock or timing strobe required

• Equal access and cycle times

• Common data input and output: Three state
output

• Directly TTL compatible: All inputs and outputs

• Capability of battery back up operation

Ordering Information

Type No. Access time Package
——————————————————————–

HM62256AP-8 85 ns 600-mil
HM62256AP-10 100 ns 28-pin
HM62256AP-12 120 ns plastic DIP
HM62256AP-15 150 ns (DP-28)

————————————————–

HM62256ALP-8 85 ns
HM62256ALP-10 100 ns
HM62256ALP-12 120 ns
HM62256ALP-15 150 ns

————————————————–

HM62256ALP-8SL 85 ns
HM62256ALP-10SL 100 ns
HM62256ALP-12SL 120 ns
HM62256ALP-15SL 150 ns

——————————————————————–

HM62256ASP-8 85 ns 300-mil
HM62256ASP-10 100 ns 28-pin
HM62256ASP-12 120 ns plastic DIP
HM62256ASP-15 150 ns (DP-28NA)

————————————————–

HM62256ALSP-8 85 ns
HM62256ALSP-10 100 ns
HM62256ALSP-12 120 ns
HM62256ALSP-15 150 ns

————————————————–

HM62256ALSP-8SL 85 ns
HM62256ALSP-10SL 100 ns
HM62256ALSP-12SL 120 ns
HM62256ALSP-15SL 150 ns

——————————————————————–

HM62256AFP-8T 85 ns 450-mil
HM62256AFP-10T 100 ns 28-pin
HM62256AFP-12T 120 ns plastic SOP
HM62256AFP-15T 150 ns (FP-28DA)

————————————————–

HM62256ALFP-8T 85 ns
HM62256ALFP-10T 100 ns
HM62256ALFP-12T 120 ns
HM62256ALFP-15T 150 ns

————————————————–

HM62256ALFP-8SLT 85 ns
HM62256ALFP-10SLT 100 ns
HM62256ALFP-12SLT 120 ns
HM62256ALFP-15SLT 150 ns

——————————————————————–

Note: This device is not available for new application.

1

HM62256A Series HM62256A Series

TSOP Series

Type No. Access time Package
——————————————————————–

HM62256ALT-8 85 ns 8 mm × 14 mm
HM62256ALT-10 100 ns 32-pin TSOP
HM62256ALT-12 120 ns (normal type)
HM62256ALT-15 150 ns (TFP-32DA)

———————————————–

HM62256ALT-8SL 85 ns
HM62256ALT-10SL 100 ns
HM62256ALT-12SL 120 ns
HM62256ALT-15SL 150 ns

——————————————————————–

Pin Arrangement

HM62256AP/AFP/ASP Series

A7
A6
A5
A4
A3
A2
A1
A0

V

SS

1
2
3
4
5
6
7
8
9
10
11
12
13
14

A14
A12

I/O0
I/O1
I/O2

Type No. Access time Package
——————————————————————–

HM62256ALR-8 85 ns 8 mm × 14 mm
HM62256ALR-10 100 ns 32-pin TSOP
HM62256ALR-12 120 ns (reverse type)
HM62256ALR-15 150 ns (TFP-32DAR)

———————————————–

HM62256ALR-8SL 85 ns
HM62256ALR-10SL 100 ns
HM62256ALR-12SL 120 ns
HM62256ALR-15SL 150 ns

——————————————————————–

V

28

CC

WE

27

A13

26

A8

25

A9

24

A11

23

OE

22

A10

21

CS

20

I/O7

19

I/O6

18

I/O5

17

I/O4

16

I/O3

15

HM62256AT Series

OE

1

A11

2

NC

3

A9

4

A8

5

A13

6

WE

7

V

8

CC

A14

9

A12

10

A7

11

A6

12

A5

13

NC

14

A4

15

A3

16

2

(Top view)

(Top view)

HM62256AR Series

32

A10

31

CS

30

NC

29

I/O7

28

I/O6

27

I/O5

26

I/O4

25

I/O3

24

V

SS

23

I/O2

22

I/O1

21

I/O0

20

A0

19

NC

18

A1

17

A2

NC

A12
A14

V

WE

A13

NC

A11

OE

A3

16

A4

15
14

A5

13

A6

12

A7

11
10
9
8

CC

7
6

A8

5

A9

4
3
2
1

(Top view)

A2

17

A1

18

NC

19

A0

20

I/O0

21

I/O1

22

I/O2

23

V

24

SS

I/O3

25

I/O4

26

I/O5

27

I/O6

28

I/O7

29

NC

30

CS

31

A10

32

HM62256A Series HM62256A Series

Pin Description

Symbol Function
——————————————————————–

A0 – A14 Address

——————————————————————–

I/O0 – I/O7 Input/output

——————————————————————–

CS Chip select

——————————————————————–

WE Write enable

——————————————————————–

Block Diagram

A5
A4
A3
A11
A9

A8
A12

•

•

•

•

•

•

•

Row
Decoder

•

•

•

Symbol Function
——————————————————————–

OE Output enable

——————————————————————–

NC No connection

——————————————————————–

V

CC

Power supply

——————————————————————–

V

SS

Ground

——————————————————————–

V

CC

V

SS

Memory Matrix

×

512 512

A7
A6

I/O0

I/O7

CS
WE

OE

•

•

•

•

•

•

•

•

•

•

•

Input
Data
Control

•

Column I/O

Column Decoder

A1 A2 A10 A14A13

A0

•

•

•

•

•

•

•

•

•

Timing Pulse Generator

Read/Write Control

3

HM62256A Series HM62256A Series

Function Table

WE CS OE Mode VCCcurrent I/O pin Ref. cycle
———————————————————————————————————————————————–

X H X Not selected I

———————————————————————————————————————————————–

H L H Output disable I

———————————————————————————————————————————————–

H L L Read I

———————————————————————————————————————————————–

L L H Write I

———————————————————————————————————————————————–

LLLWrite I

———————————————————————————————————————————————–

Note: X: H or L

Absolute Maximum Ratings

Parameter Symbol Value Unit
———————————————————————————————————————————————–

Voltage on any pin relative to V

SS

———————————————————————————————————————————————–

Power dissipation P

———————————————————————————————————————————————–

Operating temperature Topr 0 to +70 °C

———————————————————————————————————————————————–

Storage temperature Tstg –55 to +125 °C

———————————————————————————————————————————————–

Storage temperature under bias Tbias –10 to +85 °C

———————————————————————————————————————————————–

Note: 1. V

min = –3.0 V for pulse half-width ≤ 50 ns

T

V

T

T

SB

CC

CC

CC

CC

, I

SB1

–0.5*1to +7.0 V

1.0 W

High-Z —
High-Z —
Dout Read cycle (1)–(3)
Din Write cycle (1)
Din Write cycle (2)

Recommended DC Operating Conditions (Ta = 0 to +70°C)

Parameter Symbol Min Typ Max Unit
———————————————————————————————————————————————–

Supply voltage V

CC

———————————————————————————————–

V

SS

———————————————————————————————————————————————–

Input high (logic 1) voltage V

IH

———————————————————————————————————————————————–

Input low (logic 0) voltage V

IL

———————————————————————————————————————————————–

Note: 1. V

min = –3.0 V for pulse half-width ≤ 50 ns

IL

4

4.5 5.0 5.5 V
000V

2.2 — 6.0 V

*1

–0.5

— 0.8 V