K4G323222M
CMOS SGRAM
512K x 32Bit x 2 Banks Synchronous Graphic RAM
FEATURES
GENERAL DESCRIPTION
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The K4G323222M is 33,554,432 bits synchronous high data
rate Dynamic RAM organized as 2 x 524,288 words by 32 bits,
fabricated with SAMSUNG′s high performance CMOS technology. Synchronous design allows precise cycle control with the
use of system clock. I/O transactions are possible on every
clock cycle. Range of operating frequencies, programmable
burst length, and programmable latencies allows the same
device to be useful for a variety of high bandwidth, high performance memory system applications.
Write per bit and 8 columns block write improves performance in
graphics systems.
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3.3V power supply
LVTTL compatible with multiplexed address
Dual bank operation
MRS cycle with address key programs
-. CAS Latency (2, 3)
-. Burst Length (1, 2, 4, 8 & full page)
-. Burst Type (Sequential & Interleave)
All inputs are sampled at the positive going edge of the
system clock
Burst Read Single-bit Write operation
DQM 0-3 for byte masking
Auto & self refresh
32ms refresh period (2K cycle)
100 Pin PQFP, TQFP (14 x 20 mm)
ORDERING INFORMATION
Part NO.
K4G323222M-PC/L45
K4G323222M-PC/L50
K4G323222M-PC/L55
K4G323222M-PC/L60
K4G323222M-PC/L70
K4G323222M-PC/L80
K4G323222M-QC/L45
K4G323222M-QC/L50
K4G323222M-QC/L55
K4G323222M-QC/L60
K4G323222M-QC/L70
K4G323222M-QC/L80
Graphics Features
• SMRS cycle.
-. Load mask register
-. Load color register
• Write Per Bit(Old Mask)
• Block Write(8 Columns)
Max Freq.
222MHz
200MHz
183MHz
166MHz
143MHz
125MHz
222MHz
200MHz
183MHz
166MHz
143MHz
125MHz
Interface
Package
LVTTL
100 PQFP
LVTTL
100 TQFP
MASK
REGISTER
DQMi
CLK
WRITE
CONTROL
MUX
COLOR
REGISTER
LOGIC
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CKE
MASK
BLOCK
WRITE
CONTROL
LOGIC
COLUMN
MASK
INPUT BUFFER
FUNCTIONAL BLOCK DIAGRAM
DQMi
DQi
(i=0~31)
SENSE
AMPLIFIER
COLUMN
DECORDER
512Kx32
CELL
ARRAY
DSF
512Kx32
CELL
ARRAY
OUTPUT BUFFER
WE
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LATENCY &
BURST LENGTH
CAS
PROGRAMING
REGISTER
RAS
TIMING REGISTER
CS
ROW DECORDER
BANK SELECTION
DQMi
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SERIAL
COUNTER
COLUMN ADDRESS
BUFFER
ROW ADDRESS
BUFFER
ADDRESS REGISTER
REFRESH
COUNTER
* Samsung Electronics reserves the right to
change products or specification without
CLOCK ADDRESS(A 0~A10,BA)
notice.
