D a t a S h e e t ( P r e l i m i n a r y )
1.2
Product Selector Guide
Device OPN
Flash Density
pSRAM Density
MCP Speed (MHz)
pSRAM Supplier
Package
S71NS128PB0ZJETV
S71NS128PB0ZHETW
S71NS128PB0ZJEJR
S71NS128PB0ZHETS
S71NS128PC0ZHETV
S71NS128PC0ZJETV
S71NS128PC0ZHETW
S71NS128PC0ZJEJR
S71NS128PC0ZHETS
S71NS256PB0ZJETV
S71NS256PB0ZHETW
S71NS256PB0ZJEJR
S71NS256PB0ZHETS
S71NS256PC0ZHETV
S71NS256PC0ZHETW
S71NS256PC0ZJETV
S71NS256PC0ZJEJR
S71NS256PC0ZHETS
66
32 Mb
83
66
128 Mb
64 Mb
32 Mb
64 Mb
83
66
83
9.2 x 8.0 mm,
56-ball MCP
Type 3
256 Mb
66
83
2. Input/Output Descriptions
Table 2.1 identifies the input and output package connections provided on the device.
Table 2.1 Input/Output Descriptions (Sheet 1 of 2)
Symbol
Description
Flash
RAM
X
AMAX – A16
Address inputs
X
X
X
X
X
X
A/DQ15-A/DQ0 Multiplexed Address/Data
X
OE#
WE#
Output Enable input. Asynchronous relative to CLK for the Burst mode.
X
Write Enable input.
X
V
Ground
X
SS
NC
No Connect; not connected internally
X
Ready output; indicates the status of the Burst read.
Flash Memory RDY (using default “Active HIGH” configuration)
V
V
= data invalid
= data valid
OL
OH
Note: The default polarity for the pSRAM WAIT signal is opposite the default polarity of the
Flash RDY signal.
F-RDY/R-WAIT
X
X
pSRAM WAIT (using default “Active HIGH” configuration)
V
V
= data valid
OL
= data invalid
OH
To match polarities, change bit 10 of the pSRAM Bus Configuration Register to 0 (Active
LOW WAIT). Alternately, change bit 10 of the Flash Configuration Register to 0 (Active LOW
RDY)
Clock input. In burst mode, after the initial word is output, subsequent active edges of CLK
CLK
X
X
X
increment the internal address counter. Should be at V or V while in asynchronous mode
IL
IH
Address Valid input. Indicates to device that the valid address is present on the address
inputs.
AVD#
Low = for asynchronous mode, indicates valid address; for burst mode, causes starting
address to be latched.
X
X
High = device ignores address inputs
F-RST#
Hardware reset input. Low = device resets and returns to reading array data
March 30, 2010 S71NS-P_00_07
S71NS-P Memory Subsystem Solutions
5