A45L9332AE-6 AMIC Technology, Corp., A45L9332AE-6 Datasheet - Page 19

• Manufacturer Part Number: A45L9332AE-6
• Description: 256K x 32 Bit x 2 Banks Synchronous Graphic RAM
• Manufacturer: AMIC Technology, Corp.

Summary of 2M Byte SGRAM Basic Features and Benefits
Interface
Bank
Page Depth / 1 Row
Total Page Depth
Burst Length (Read)
Burst Length (Write)
Burst Type
CAS Latency
Block Write
Color Register
Mask Register
Mask function
Basic feature And Function Descriptions
1. CLOCK Suspend
PRELIMINARY
Note: CLK to CLK disable/enable=1 clock
DQ(CL2)
DQ(CL3)
Internal
CMD
CKE
Features
CLK
CLK
1) Click Suspended During Write (BL=4)
WR
D0
D0
(October, 2001, Version 0.1)
D1
D1
Pixel Mask at Block Write Byte masking (pixel masking for 8bpp system) for color by DQi
256K X 32 X 2 SGRAM
Sequential & Interleave
Not Written
1,2,4,8 Full Page
1,2,4,8 Full Page
Masked by CKE
Synchronous
Write per bit
2048 bytes
8 Columns
DQM0-3
256 bit
BRSW
D2
D2
1 ea.
1 ea.
2 ea
2,3
D3
D3
Better interaction between memory and system without wait-state of
asynchronous DRAM.
High speed vertical and horizontal drawing.
High operation frequency allows performance gain for SCROLL, FILL,
and BitBLT.
Pseudo-infinite row length by on-chip interleaving operation.
Hidden row activation and precharge.
High speed vertical and horizontal drawing.
High speed vertical and horizontal drawing
Programmable burst of 1,2,4,8 and full page transfer per column
addresses.
Programmable burst of 1,2,4,8 and full page transfer per column
addresses.
Switch to burst length of 1 at write without MRS
Compatible with Intel and Motorola CPU based system.
Programmable CAS latency.
High speed FILL, CLEAR, Text with color registers.
Maximum 32 byte data transfers (e.g. for 8bpp : 32 pixels) with plane
and byte masking functions.
A and B bank share.
Write-per-bit capability (bit plane masking). A and B banks share.
Byte masking (pixel masking for 8bpp system) for data-out/in
Each bit of the mask register directly controls a corresponding bit
plane.
2) Clock Suspended During Read (BL=4)
18
RD
Q0
Q0
Q1
Benefits
Masked by CKE
AMIC Technology, Inc.
Q2
Q1
A45L9332A Series
Suspended Dout
Q3
Q2
Q3