SNR016
16M-bit Mask ROM
1. INTRODUCTION
The SNR016 is a signal power, 16M-bit, read only memory. It is organized as 2M bytes,
operates for single 3V power supply, support static standby mode. The SNR016
embedded two different interfaces, one is a standard 8-bit interface bus which
compatible with SNL310, another one is a special 8-bit AD (address/data) bus which
compatible with SNC710.
SNR016 offers automatic power-down, with power-down controlled by the chip enable
“CEB”. When chip enable goes to high, SNR016 will entry power-down mode in order
to save the power consumption.
2. FEATURES
♦ Power supply: 2.4V ~ 3.6V
♦ Memory Size: 16M-bit
♦ Totally static operation
♦ Embedded a standard 8-bit bus interface compatible with SNL310 or a 8-bit AD
(address/data) bus interface compatible with SNC710
♦ Access time: 200ns @3V
3. PIN ASSIGNMENTS
Symbol
TYPE
A[8..20]
A[7]
A[6]
A[5]
A[4]
A[3]
A[2]
A[1]
A[0]
D[0..7]
CEB
OEB
VDD
GND
I/O Standard ROM interface
I 0: Standard ROM type
I Standard ROM Address [8..20]
I Standard ROM Address A7
I Standard ROM Address A6
I Standard ROM Address A5
I Standard ROM Address A4
I Standard ROM Address A3
I Standard ROM Address A2
I Standard ROM Address A1
I Standard ROM Address A0
I/O Standard ROM Data [0..7]
I Standard ROM Chip Enable
I Standard ROM Output Enable
P 3.3volt Positive Power supply
P Ground
AD Bus interface
1: AD Bus interface
NC
TESTM
Bank Select 4
Bank Select 3
Bank Select 2
Bank Select 1
NC
ALECLK
READY
Address/Data bus [0..7]
Chip Enable
NC
3.3volt Positive Power supply
Ground
Ver. 1.4
3
October 21, 2005