IC41C16256 Datasheet, PDF (9/21 Pages) Integrated Circuit Solution Inc – 256Kx16 bit Dynamic RAM with EDO Page Mode

IC41C16256
IC41LV16256
AC CHARACTERISTICS (Continued)^{(1,2,3,4,5,6)}
(Recommended Operating Conditions unless otherwise noted.)
Symbol
tACH
tOEH
tDS
tDH
tRWC
tRWD
tCWD
tAWD
tPC
tRASP
tCPA
tPRWC
tCOH
tOFF
tWHZ
tCLCH
tCSR
tCHR
tORD
tREF
tT
Parameter
-25
Min. Max.
Column-Address Setup Time to CAS
Precharge during WRITE Cycle
15 —
OE Hold Time from WE during
READ-MODIFY-WRITE cycle⁽¹⁸⁾
5—
Data-In Setup Time^{(15, 22)}
0—
Data-In Hold Time^{(15, 22)}
5—
READ-MODIFY-WRITE Cycle Time
65 —
RAS to WE Delay Time during
READ-MODIFY-WRITE Cycle⁽¹⁴⁾
35 —
CAS to WE Delay Time^{(14, 20)}
17 —
Column-Address to WE Delay Time⁽¹⁴⁾ 21 —
EDO Page Mode READ or WRITE
Cycle Time⁽²⁴⁾
10 —
RAS Pulse Width in EDO Page Mode 25 100K
Access Time from CAS Precharge⁽¹⁵⁾
— 14
EDO Page Mode READ-WRITE
Cycle Time⁽²⁴⁾
32 —
Data Output Hold after CAS LOW
5—
Output Buffer Turn-Off Delay from
CAS or RAS^{(13,15,19, 29)}
3 15
Output Disable Delay from WE
3 15
Last CAS going LOW to First CAS
returning HIGH⁽²³⁾
10 —
CAS Setup Time (CBR REFRESH)^{(30, 20)} 5 —
CAS Hold Time (CBR REFRESH)^{(30, 21)} 7 —
OE Setup Time prior to RAS during
HIDDEN REFRESH Cycle
0—
Refresh Period (512 Cycles)
—8
Transition Time (Rise or Fall)^{(2, 3)}
1 50
-35
Min. Max.
15 —
8—
0—
6—
80 —
45 —
25 —
30 —
12 —
35 100K
— 21
40 —
5—
3 15
3 15
10 —
8—
8—
0—
—8
1 50
-50
Min. Max.
15 —
-60
Min. Max. Units
15 — ns
10 — 15 — ns
0—
0 — ns
8 — 10 — ns
125 — 140 — ns
70 — 80 — ns
34 —
42 —
20 —
36 — ns
49 — ns
25 — ns
50 100K
— 27
47 —
50 100K ns
— 34 ns
56 — ns
5—
3 15
5 — ns
3 15 ns
3 15
10 —
3 15 ns
10 — ns
10 —
10 —
0—
10 — ns
10 — ns
0 — ns
8—
1 50
8 — ms
1 50 ns
AC TEST CONDITIONS
Output load:
Two TTL Loads and 50 pF (Vcc = 5.0V ±10%)
One TTL Load and 50 pF (Vcc = 3.3V ±10%)
Input timing reference levels: VIH = 2.4V, VIL = 0.8V (Vcc = 5.0V ±10%);
VIH = 2.0V, VIL = 0.8V (Vcc = 3.3V ±10%)
Output timing reference levels: VOH = 2.0V, VOL = 0.8V (Vcc = 5V ±10%, 3.3V ±10%)
Integrated Circuit Solution Inc.
9
DR018-0C 04/23/2004