S75NS-N_00_01E May 3, 2006

S75NS-N

3

Da ta

Shee t

(Advance

I nformation)

2.

Input/Output Descriptions

Table 2.1 identifies the input and output package connections provided on the device.

Table 2.1 Input/Output Descriptions

Symbol

Signal

Type

Description

NS

(NOR)

pSRAM

MS

(ORNAND)

AMAX – A16

Input

Address inputs

X

X

ADQ15 – ADQ0

I/O

Multiplexed Address/Data

X

X

OE#

Input

Output Enable input. Asynchronous relative to CLK for the Burst

mode.

XX

WE#

Input

Write Enable input.

X

X

Ground

Ground

X

X

F-RDY / R-WAIT

Output

Ready output. Indicates the status of the Burst read. The WAIT#

pin of the pSRAM is tied to RDY.

XX

CLK

Input

Clock input. In burst mode, after the initial word is output,

subsequent active edges of CLK increment the internal address

XX

AVD#

Input

Address Valid input. Indicates to device that the valid address is

present on the address inputs. Low = for asynchronous mode,

indicates valid address; for burst mode, causes starting address

to be latched. High = device ignores address inputs

XX

F-RST#

Input

Hardware reset input. Low = device resets and returns to reading

array data

X

F-WP#

Input

other conditions.

X

F-ACC

Input

other conditions.

X

F-CE#

Input

Chip-enable input for Flash. Asynchronous relative to CLK for

Burst Mode.

X

Power

Flash 1.8 Volt-only single power supply

X

X

R-CE1#

Input

Chip-enable input for pSRAM

X

R-CRE

Input

Control Register Enable (pSRAM)

X

Power

pSRAM Power Supply

X

R-UB#

Input

Upper Byte Control (pSRAM)

X

R-LB#

Input

Lower Byte Control (pSRAM)

X

N-CLE

Input

Command Latch Enable

X

N-ALE

Input

Address Latch Enable

X

N-CE#

Input

Chip Enable input for ORNAND

X

N-WE#

Input

Write Enable input

X

N-RE#

Input

Read Enable input

X

N-IO0 - N-IO7

I/O

Data Input/Output

X

N-WP#

Input

other conditions.

X

N-RY/BY#

Input

Ready/Busy output

X

N-PRE

Input

Power-On Read Enable

X

Ground

Ground

X

Power

ORNAND 1.8 Volt-only single power supply.

X

DNU

—

Do Not Use

NC

—

No Connect; not connected internally