IS43R16160B-5TLI-TR ISSI, Integrated Silicon Solution Inc, IS43R16160B-5TLI-TR Datasheet - Page 7
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IS43R16160B-5TLI-TR
Manufacturer Part Number
IS43R16160B-5TLI-TR
Description
IC DDR SDRAM 256MBIT 66TSOP
Manufacturer
ISSI, Integrated Silicon Solution Inc
Type
SDRAMr
Specifications of IS43R16160B-5TLI-TR
Format - Memory
RAM
Memory Type
DDR SDRAM
Memory Size
256M (16Mx16)
Speed
200MHz
Interface
Parallel
Voltage - Supply
2.5 V ~ 2.7 V
Operating Temperature
-40°C ~ 85°C
Package / Case
66-TSOPII
Organization
16Mx16
Density
256Mb
Address Bus
15b
Access Time (max)
700ps
Maximum Clock Rate
200MHz
Operating Supply Voltage (typ)
2.5V
Package Type
TSOP-II
Operating Temp Range
-40C to 85C
Operating Supply Voltage (max)
2.7V
Operating Supply Voltage (min)
2.3V
Supply Current
250mA
Pin Count
66
Mounting
Surface Mount
Operating Temperature Classification
Industrial
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
DDR SDRAM (Rev.1.1)
Write (WRITE) [/RAS =H, /CAS =/WE =L]
Precharge (PRE) [/RAS =L, /CAS =H, /WE =L]
Auto-Refresh (REFA) [/RAS =/CAS =L, /WE =CKE =H]
IS43R83200B
IS43R16160B, IC43R16160B
Activate (ACT) [/RAS =L, /CAS =/WE =H]
Read (READ) [/RAS =H, /CAS =L, /WE =H]
Integrated Silicon Solution, Inc.
Rev. B
10/31/08
/CAS latency. When A10 =H at this command, the bank is deactivated after the burst read (auto-
precharge, READA)
ACT command activates a row in an idle bank indicated by BA.
READ command starts burst read from the active bank indicated by BA. First output data appears after
(auto-precharge, WRITEA)
/write operation. When A10 =H at this command, all banks are deactivated (precharge all, PREA ).
internally. After this command, the banks are precharged automatically.
BASIC FUNCTIONS
ISSI's 256-Mbit DDR SDRAM provides basic functions, bank (row) activate, burst read / write, bank
(row) precharge, and auto / self refresh. Each command is defined by control signals of /RAS,
/CAS and /WE at CLK rising edge. In addition to 3 signals, /CS , CKE and A10 are used as chip
select, refresh option, and precharge option, respectively. To know the detailed definition of
commands, please see the command truth table.
WRITE command starts burst write to the active bank indicated by BA. Total data length to be written
is set by burst length. When A10 =H at this command, the bank is deactivated after the burst write
PRE command deactivates the active bank indicated by BA. This command also terminates burst read
REFA command starts auto-refresh cycle. Refresh address including bank address are generated
/CLK
CLK
/CS
/RAS
/CAS
/WE
CKE
A10
Preliminary
Preliminary
Chip Select : L=select, H=deselect
Command
Command
Command
Refresh Option @refresh command
Precharge Option @precharge or read/write command
256M Double Data Rate Synchronous DRAM
define basic commands
A3S56D30/40ETP
7