HM62256 Hitachi Semiconductor, HM62256 Datasheet

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HM62256

Manufacturer Part Number
HM62256
Description
32/768-word x 8-bit High Speed CMOS Static RAM
Manufacturer
Hitachi Semiconductor
Datasheet
HM62256A Series
32,768-word
The Hitachi HM62256A is a CMOS static RAM
organized 32-kword
performance and low power consumption by
employing 0.8 µm Hi-CMOS process technology.
The device, packaged in a 8
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
• Low Power
• Single 5 V supply
• Completely static memory
• Equal access and cycle times
• Common data input and output: Three state
• Directly TTL compatible: All inputs and outputs
• Capability of battery back up operation
Note: This device is not available for new application.
(max)
Standby: 5 µW (typ) (L/L-SL version)
Operation: 40 mW (typ) (f = 1 MHz)
No clock or timing strobe required
output
8-bit High Speed CMOS Static RAM
8-bit. It realizes higher
14 mm TSOP with
Ordering Information
Type No.
——————————————————————–
HM62256AP-8
HM62256AP-10
HM62256AP-12
HM62256AP-15
————————————————–
HM62256ALP-8
HM62256ALP-10
HM62256ALP-12
HM62256ALP-15
————————————————–
HM62256ALP-8SL
HM62256ALP-10SL
HM62256ALP-12SL
HM62256ALP-15SL
——————————————————————–
HM62256ASP-8
HM62256ASP-10
HM62256ASP-12
HM62256ASP-15
————————————————–
HM62256ALSP-8
HM62256ALSP-10
HM62256ALSP-12
HM62256ALSP-15
————————————————–
HM62256ALSP-8SL
HM62256ALSP-10SL 100 ns
HM62256ALSP-12SL 120 ns
HM62256ALSP-15SL 150 ns
——————————————————————–
HM62256AFP-8T
HM62256AFP-10T
HM62256AFP-12T
HM62256AFP-15T
————————————————–
HM62256ALFP-8T
HM62256ALFP-10T
HM62256ALFP-12T
HM62256ALFP-15T
————————————————–
HM62256ALFP-8SLT 85 ns
HM62256ALFP-10SLT 100 ns
HM62256ALFP-12SLT 120 ns
HM62256ALFP-15SLT 150 ns
——————————————————————–
Access time Package
85 ns
100 ns
120 ns
150 ns
85 ns
100 ns
120 ns
150 ns
85 ns
100 ns
120 ns
150 ns
85 ns
100 ns
120 ns
150 ns
85 ns
100 ns
120 ns
150 ns
85 ns
85 ns
100 ns
120 ns
150 ns
85 ns
100 ns
120 ns
150 ns
Maintenance only
600-mil
28-pin
plastic DIP
(DP-28)
300-mil
28-pin
plastic DIP
(DP-28NA)
450-mil
28-pin
plastic SOP
(FP-28DA)
1

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HM62256 Summary of contents

Page 1

... HM62256A Series 32,768-word 8-bit High Speed CMOS Static RAM 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 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 ...

Page 2

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

Page 3

... Row • 512 512 • Decoder Column I/O • • Input Column Decoder Data Control A10 • • Timing Pulse Generator Read/Write Control HM62256A Series Function Output enable No connection Power supply Ground • • • • • • A13 A14 • ...

Page 4

... 2 –0.5 IL HM62256A Series I/O pin Ref. cycle High-Z — High-Z — Dout Read cycle (1)–(3) Din Write cycle (1) ...

Page 5

... HM62256A Series DC Characteristics ( +70°C, V Parameter Symbol ———————————————————————————————————————————————– ...

Page 6

... Input rise and fall times • Output load: 1 TTL Gate + C (Including scope & jig) HM62256A-8 HM62256A-10 HM62256A-12 HM62256A-15 —————– —————– —————– —————– Min Max ...

Page 7

... HM62256A Series Read Timing Waveform (1) Address CS OE Dout Read Timing Waveform (2) Address Dout * ACS *2 t CLZ OLZ * HM62256A Series OHZ * CHZ Valid Data t OH Valid Data 7 ...

Page 8

... IL HM62256A-8 HM62256A-10 HM62256A-12 HM62256A-15 —————– —————– —————– —————– Min Max ...

Page 9

... HM62256A Series Write Timing Waveform (1) ( Address Dout Din Clock *10 t OHZ HM62256A Series * Valid Data 9 ...

Page 10

... Low Fixed *10 t WHZ is measured from the beginning of write to the end of WP are defined as the time at which the outputs achieve the open circuit HM62256A Series * * Valid Data *8 *7 ...

Page 11

... CDR * — — Data retention mode CS V – +25°C and not guaranteed. CC HM62256A Series Unit Test conditions CS ≥ V – 0.2 V, Vin ≥ 3.0 V, Vin ≥ µ ≥ V µA – 0 See retention waveform ...

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