IC Memory
Other
s
Dual-Port Graphic Buffer
Organiza-
Capacity tion
(bits)
(words
bits)
4M
Maximum supply
Random
Serial read current
access
cycle time
Active Standby
time MAX.
(ns)
(ns)
(mA)
(mA)
60
70
80
20
22
25
130
110
90
10
Supply
voltage
(V)
5±10 %
Part number
Package
Remarks
256K
16
µ
PD482444
• 64-pin SSOP
(525 mil)
2WE Byte Control
Fast Page
Flash/Block Write
Split Buffer
Stopping Column
2WE Byte Control
Hyper Page
Flash/Block Write
Split Buffer
Stopping Column
Fast page
Flash write
Block write
Split buffer
Hyper page
Flash write
Block write
Split buffer
µ
PD482445
60
70
80
70
80
60
70
80
60
70
80
20
22
25
22
25
20
22
25
20
22
25
130
110
90
110
90
155
195
190
155
195
190
7
10
3.3±0.3
5±10 %
µ
PD482445L
2M
256K
8
µ
PD482234
• 64-pin SSOP
(525 mil)
• 70-pin TSOP
II
(400 mil)
• 40-pin SOJ
• 44-pin TSOP
II
µ
PD482235
s
Synchronous Graphics RAM
Cycle
time
MIN.
(ns)
10
(100 MHz)
12
(83 MHz)
15
(66 MHz)
Capacity
(bits)
Organiza-
tion
Part number
Refresh
Maximum supply current (mA)
Active
Standby
cycle
(cycles/
Normal/Burst power Self
(Grade–10, down
refresh
ms)
C.L=3)
mode
1024/16
105/365
90/310
85/285
3
2
Inter-
face
Supply
voltage
(V)
Package
Function
8M
µ
PD481850
128K
2 banks
32 bits
LVTTL
3.3±0.3 • 100-pin QFP
(14
20 mm)
Sychronous Interface
Write-per-bit (Old Mask)
8 column Block Write
s
Graphic Memory
Organiza-
tion
(words
bits)
Page mode Maximum supply
Random
current
access
access
Active Standby
time MAX. time MAX.
(ns)
(mA)
(mA)
(ns)
70
80
35
40
180
165
2
Supply
voltage
(V)
5±10 %
Capacity
(bits)
Part number
Package
Remarks
4M
256K
16
µ
PD481440
• 40-pin SOJ
(400 mil)
2WE Byte Control
Flash write
Block write
81
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