HM6268 Datasheet, PDF (1/9 Pages) List of Unclassifed Manufacturers – 4096-word X 4-bit High-Speed CMOS Static RAM

HM6268 Series
4096-word × 4-bit High-Speed CMOS Static RAM
Maintenance only
Features
• Single 5 V supply and high density 20-pin
package
• High speed: fast access time 25/35/45 ns (max)
• Low power
— Active: 250 mW (typ)
— Standby: 100 µW (typ), 5 µW (typ)
(L-version)
• Completely static memory: no clock or timing
strobe required
• Equal access and cycle times
• Directly TTL compatible—all inputs and outputs
• Battery back-up operation capability
(L-version)
Pin Arrangement
A4 1 20 V_CC
A5 2 19 A3
A6 3 18 A2
A7 4 17 A1
A8 5 16 A0
A9 6 15 I/O1
A10 7 14 I/O2
A11 8 13 I/O3
CS 9 12 I/O4
V_SS 10 11 WE
(Top view)
Ordering Information
Type No.
Access time
HM6268P-25
25 ns
HM6268P-35
35 ns
HM6268P-45
45 ns
HM6268LP-25
25 ns
HM6268LP-35
35 ns
HM6268LP-45
45 ns
Package
300-mil 20-pin, plastic DIP
(DP-20N)
Note: This device is not available for new application.
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