HM62256B Series
32,768-word × 8-bit High Speed CMOS Static RAM
The Hitachi HM62256B is a CMOS static RAM
Ordering Information
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 8 × 14 mm TSOP, 8 × 13.4
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. It offers low power standby power
dissipation; therefore, it is suitable for battery back-
up systems.
Type No.
Access time Package
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HM62256BLP-7
HM62256BLP-8
HM62256BLP-10
HM62256BLP-12
70 ns
600-mil
85 ns
28-pin
100 ns
120 ns
plastic DIP
(DP-28)
—————————————
HM62256BLP-7SL
HM62256BLP-8SL
HM62256BLP-10SL
HM62256BLP-12SL
70 ns
85 ns
100 ns
120 ns
————————————————————–
HM62256BLSP-7
HM62256BLSP-8
HM62256BLSP-10
HM62256BLSP-12
70 ns
300-mil
85 ns
28-pin
100 ns
120 ns
plastic DIP
(DP-28NA)
Features
—————————————
HM62256BLSP-7SL
HM62256BLSP-8SL
HM62256BLSP-10SL 100 ns
HM62256BLSP-12SL 120 ns
————————————————————–
HM62256BLFP-7T
HM62256BLFP-8T
HM62256BLFP-10T
HM62256BLFP-12T
—————————————
HM62256BLFP-7SLT 70 ns
HM62256BLFP-8SLT 85 ns
HM62256BLFP-10SLT 100 ns
HM62256BLFP-12SLT 120 ns
70 ns
85 ns
• High speed
Fast access time: 70/85/100/120 ns (max)
• Low power
Standby: 1.5 µW (typ)
Operation: 25 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
70 ns
85 ns
100 ns
120 ns
450-mil
28-pin
plastic SOP
(FP-28DA)
————————————————————–
HM62256BLT-8
HM62256BLT-10
HM62256BLT-12
85 ns
100 ns
120 ns
8 mm × 14 mm
32-pin TSOP
(TFP-32DA)
—————————————
HM62256BLT-7SL
70 ns
HM62256BLT-8SL
85 ns
————————————————————–
HM62256BLTM-8
—————————————
HM62256BLTM-7SL
85 ns
8 mm × 13.4 mm
28-pin TSOP
(TFP-28DA)
70 ns
HM62256BLTM-8SL
85 ns
————————————————————
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