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W986416CH Datasheet

  • W986416CH

  • 1M x 16 BIT x 4 BANKS SDRAM

  • 42頁(yè)

  • WINBOND

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W986416CH
1M x 16 bit x 4 Banks SDRAM
Features
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3.3V鹵0.3V power supply
Up to 166 MHz clock frequency
1,048,576 words x 4 banks x 16 bits organization
Auto Refresh and Self Refresh
CAS latency: 2 and 3
Burst Length: 1, 2, 4, 8 , and full page
Burst read, Single Writes Mode
Byte data controlled by UDQM and LDQM
Power-Down Mode
Auto-Precharge and controlled precharge
4k refresh cycles / 64ms
Interface: LVTTL
Package: TSOP II 54 pin, 400 mil - 0.80
General Description
W986416CH is a high speed synchronous dynamic random access memory (SDRAM), organized as 1M words x 4 banks x
16 bits. Using pipelined architecture and 0.20um process technology, W986416CH delivers a data bandwidth of up to 332M
bytes per second (-6). For different application, W986416CH is sorted into four speed grades: -6, -7, -75 and -8H. The -6 parts
can run up to 166Mhz/CL3. The -7 parts can run up to 143Mhz/CL3 specification. The -75 parts can run up to PC133/CL3
specification. The -8H parts can run up to 125Mhz/CL3 or PC100/CL2 specification.
Accesses to the SDRAM are burst oriented. Consecutive memory location in one page can be accessed at a burst length of
1, 2, 4, 8 or full page when a bank and row is selected by an ACTIVE command. Column addresses are automatically generated
by the SDRAM internal counter in burst operation. Random column read is also possible by providing its address at each clock
cycle. The multiple bank nature enables interleaving among internal banks to hide the precharging time.
By having a programmable Mode Register, the system can change burst length, latency cycle, interleave or sequential burst
to maximize its performance. W986416CH is ideal for main memory in high performance applications.
Key Parameters
Symbol
t
CK
t
AC
t
RP
t
RCD
I
CC1
I
CC4
I
CC6
Description
Clock Cycle Time
Access Time from CLK
Precharge to Active Command
Active to Read/Write Command
Operation Current ( Single bank )
Burst Operation Current
Self-Refresh Current
min/max
min
max
min
min
max
max
max
-6
6ns
5ns
18ns
18ns
80mA
130mA
1mA
-7
7ns
5.4ns
20ns
20ns
65mA
115mA
1mA
-75(PC133)
7.5ns
5.4ns
20ns
20ns
65mA
115mA
1mA
-8H(PC100)
8ns
6ns
20ns
20ns
60mA
110mA
1mA
Revision 1.2
-1-
Publication Release Date: June, 1999

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