MT42C4256C-10/883C AUSTIN [Austin Semiconductor], MT42C4256C-10/883C Datasheet - Page 17

• Manufacturer Part Number: MT42C4256C-10/883C
• Description: 256K X 4 VRAM 256K x 4 DRAM with 512K x 4 SAM
• Manufacturer: AUSTIN [Austin Semiconductor]

ELECTRICAL CHARACTERISTICS OVER RECOMMENDED RANGES
OF SUPPLY VOLTAGES AND OPERATING FREE-AIR TEMPERATURE
(UNLESS OTHERWISE NOTED)
NOTES:
1. The SMJ44C251B may exhibit simultaneous switching noise as described in the Texas Instruments Advanced CMOS Logic Designer’s Handbook.
This phenomenon is exhibited on the DQ terminals when the SDQ terminals are switched and on the SDQ terminals when the DQ terminals are
switched. This may cause V
should be taken to provide proper termination, decoupling, and layout of the device to minimize simultaneous switching effects.
2. SE\ is disabled for SDQ output leakage tests.
3.
4. For conditions shown as MIN/ MAX, use the appropriate value specified in the timing requirements.
SMJ44C251B/MT42C4256
Rev. 0.1 12/03
High-level output voltage
Low-level output voltage
Input leakage current
Output leakage current
Operating current
Operating current
Standby current
Standby current
RAS\-only refresh current
RAS\-only refresh current
Page-mode current
Page-mode current
CAS\-before-RAS\ current
CAS\-before-RAS\ current
Data-transfer current
Data-transfer current
I
I
I
CC
CCA
CC
is measured with no load on DQ or SDQ.
(standby) denotes that the SAM port is inactive (standby) and the DRAM port is active (except for I
PARAMETER
PARAMETER
(active) denotes that the SAM port is active and the DRAM port is active (except for I
Austin Semiconductor, Inc.
OL
3
and V
2
1
OH
to exceed the data-book limit for a short period of time, depending upon output loading and temperature. Care
I
I
I
I
I
I
SYM
CC1A
CC2A
CC3A
CC4A
CC5A
CC6A
I
I
I
I
I
I
CC1
CC2
CC3
CC4
CC5
CC6
SYM
V
V
I
OH
I
OL
O
I
t
t
t
t
c(rd)
c(rd)
c(rd)
c(rd)
All clocks = V
CONDITIONS
t
t
t
t
t
t
c(SC)
c(SC)
c(SC)
t
c(SC)
c(SC)
c(SC)
and t
and t
and t
and t
V
c(P)
V
CC
CC
= MIN
= 5.5V, V
c(W)
c(W)
c(W)
c(W)
= MIN
= MIN
= MIN
= MIN
= MIN
= MIN
= 5V, V
All others open
CONDITIONS
I
I
OL
17
OH
= MIN
= MIN
= MIN
= MIN
CC
= 4.2mA
= -5mA
I
= 0V to 5.8V,
O
= 0V to V
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
Standby
Standby
Standby
Standby
Standby
Standby
PORT
Active
Active
Active
Active
Active
Active
SAM
CC
CC2
MIN MAX
).
-10
MIN
2.4
100
110
100
110
110
100
110
CC2
15
35
65
70
90
).
SMJ44C251B
MT42C4256
MIN MAX UNITS
MAX
±10
±10
0.4
-12
VRAM
VRAM
VRAM
VRAM
VRAM
100
100
100
100
90
15
35
90
60
65
80
90
UNIT
µA
µA
V
V
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA