AS4C14405
Features
- Organization: 1,048,576 words × 4 bits
- High speed
- 40/50/60/70 ns RAS access time
- 20/25/30/35 ns column address access time
- 10/13/15/18 ns CAS access time
- 1024 refresh cycles, 16 ms refresh interval
- RAS-only or CAS-before-RAS refresh
- Low power consumption
- Active: 385 m W max (-60)
- Standby: 5.5 m W max, CMOS I/O
- Fast page mode (AS4C14400) or EDO (AS4C14405)
Pin arrangement
I/O0 I/O1 WE RAS A9 1 2 3 4 5
A0 A1 A2 A3 VCC
9 10 11 12 13
Selection guide
Maximum RAS access time Maximum CAS access time
Maximum column address access time m o .c U 4 t e e h S a t a .D w w w
- 300 mil, 20/26-pin SOJ
- 300 mil, 20/26-pin TSOP
- Read-modify-write
- TTL-patible, three-state I/O
- JEDEC standard packages
- Single 5V power supply
- ESD protection ≥ 2001V
- Latch-up current ≥ 200 m A
Pin designation
Pin(s) RAS OE A0 to A9
TSOP
Description
26 25 24 23 22
GND I/O3 I/O2 CAS OE
I/O0 I/O1 WE RAS A9
1 2 3 4 5
26 25 24 23 22
GND I/O3 I/O2 CAS OE
Address...
