Preliminary
IBM0418A81BLAB IBM0436A81BLAB
IBM0418A41BLAB IBM0436A41BLAB
8Mb (256Kx36 & 512x18) and 4Mb (128Kx36 & 256Kx18) SRAM
AC Input Characteristics
Item
AC Input Logic High
AC Input Logic Low
Clock Input Differential Voltage
V
REF
Peak to Peak ac Voltage
Symbol
V
IH
(ac)
V
IL
(ac)
V
DIF
(ac)
V
REF
(ac)
0.7
5% V
REF
(dc)
Min
V
REF
+ 0.4
V
REF
- 0.4
Max
Notes
3
3
2
1
1. The peak to peak AC component superimposed on V
REF
may not exceed 5% of the DC component of V
REF.
2. Performance is a function of V
IH
and V
IL
levels to clock inputs.
3. See the AC Input Definition figure below.
AC Input Definition
V
IH
(ac)
V
REF
V
IL
(ac)
Programmable Impedance Output Driver DC Electrical Characteristics
(T
A
= 0 to +85°C, V
DD
= 2.5V -5%, +5%, V
DDQ
= 1.8 V)
Parameter
Output “High” Level Voltage
Output “Low” Level Voltage
Symbol
V
OH
V
OL
Min.
V
DDQ
/ 2
V
SS
Max.
V
DDQ
V
DDQ
/ 2
Units
V
V
Notes
1, 3
2, 3
VDDQ
RQ
-
1. I
OH
=
------------------
⁄
-------- + 5
±
15% @ V
OH
= V
DDQ
/ 2 For: 175Ω
≤
RQ
≤
350Ω.
5
2
-
2. I
OL
=
------------------
⁄
--------
±
15% @ V
OL
= V
DDQ
/ 2 For: 175Ω
≤
RQ
≤
350Ω.
2
5
3. Parameter tested with RQ = 250Ω and V
DDQ
= 1.8 V.
VDDQ
RQ
crrh2519.07
12/13/00
©IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
Page 9 of 25
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