參數(shù)資料
型號: ICSSSTUA32S865AHLF-T
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 鎖存器
英文描述: SSTU SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, PBGA160
封裝: 9 X 13 MM, LEAD FREE, BGA-160
文件頁數(shù): 12/17頁
文件大?。?/td> 199K
代理商: ICSSSTUA32S865AHLF-T
4
ICSSSTUA32S865A
1053A—03/21/05
Ball Assignment
Signal Group
Signal Name
Type
Description
Ungated inputs DCKE0, DCKE1,
DODT0, DODT1
SSTL_18
DRAM function pins not associated with Chip Select.
Chip Select
gated inputs
D0 ... D21
SSTL_18
DRAM inputs, re-driven only when Chip Select is LOW.
Chip Select
inputs
DCS0# , DCS1#
SSTL_18
DRAM Chip Select signals. These pins initiate DRAM
address/command decodes, and as such at least one will be
low when a valid address/command is present. The register
can be programmed to re-drive all D-inputs only (CSGateEN
high) when at least one Chip Select input is LOW.
Re-driven
outputs
Q0A...Q21A,
Q0B ... Q21B,
QCS#0-1A,B,
QCKE0-1A,B,
QODT0-1A,B
SSTL_18
Outputs of the register, valid after the specified clock count
and immediately following a rising edge of the clock.
Parity input
PARIN
SSTL_18
Input parity is received on pin PARIN and should maintain
odd parity across the D0...D21 inputs, at the rising edge of the
clock.
Parity error
output
PTYERR#
Open drain
When LOW, this output indicates that a parity error was
identified associated with the address and/or command inputs.
PTYERR# will be active for two clock cycles, and delayed by
an additional clock cycle for compatibility with final parity
out timing on the industry-standard DDR-II register with
parity (in JEDEC definition).
Program inputs CSGateEN
1.8 V
LVCMOS
Chip Select Gate Enable. When HIGH, the D0..D21 inputs
will be latched only when at least one Chip Select input is
LOW during the rising edge of the clock. When LOW, the
D0...D21 inputs will be latched and redriven on every rising
edge of the clock.
Clock inputs
CK, CK#
SSTL_18
Differential master clock input pair to the register. The
register operation is triggered by a rising edge on the positive
clock input (CK).
Miscellaneous
inputs
MCL, MCH
Must be connectedd to a logic LOW or HIGH.
RESET#
1.8 V
LVCMOS
Asynchronous reset input. When LOW, it causes a reset of the
internal latches, thereby forcing the outputs LOW. RESET#
also resets the PTYERR# signal.
VREF
0.9 V nominal Input reference voltage for the SSTL_18 inputs. Two pins
(internally tied together) are used for increased reliability.
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