F49L400UA Datasheet, PDF (2/47 Pages) Elite Semiconductor Memory Technology Inc. – 4 Mbit (512K x 8/256K x 16) 3V Only CMOS Flash Memory

EFST
4. PIN CONFIGURATIONS
4.1 48-pin TSOP
F49L400UA/F49L400BA
A15
1
A14
2
A13
3
A12
4
A11
5
A10
6
A9
7
A8
8
NC
9
NC
10
WE
11
RESET
12
NC
13
NC
14
RY/BY
15
NC
16
A17
17
A7
18
A6
19
A5
20
A4
21
A3
22
A2
23
A1
24
F49L400U/BA
48
A16
47
BYTE
46
GND
45
DQ15/A-1
44
DQ 7
43
DQ14
42
DQ 6
41
DQ13
40
DQ 5
39
DQ12
38
DQ 4
37
VCC
36
DQ11
35
DQ 3
34
DQ10
33
DQ 2
32
DQ 9
31
DQ 1
30
DQ 8
29
DQ 0
28
OE
27
GND
26
CE
25
A0
4.2 Pin Description
Symbol
Pin Name
A0~A17
Address Input
DQ0~DQ14 Data Input/Output
DQ15/A-1
CE
Q15 (Word mode) /
LSB addr (Byte Mode)
Chip Enable
Functions
To provide memory addresses.
To output data when Read and receive data when Write.
The outputs are in tri-state when OE or CE is high.
To bi-direction date I/O when BYTE is High
To input address when BYTE is Low
To activate the device when CE is low.
OE
WE
RESET
Output Enable
Write Enable
Reset
To gate the data output buffers.
To control the Write operations.
Hardware Reset Pin/Sector Protect Unprotect
BYTE
RY/ BY
V_CC
GND
NC
Word/Byte selection input To select word mode or byte mode
Ready/Busy
Power Supply
Ground
No connection
To check device operation status
To provide power
Elite Flash Storage Technology Inc.
Publication Date : Sep. 2006
Revision: 1.1
2/47