HANBit
HMF8M8F4VS
FLASH-ROM MODULE 8MByte (8M x 8-Bit) , SMM 80Pin
Part No. HMF8M8F4VS
GENERAL DESCRIPTION
The HMF8M8F4VS is a high-speed flash read only memory (FROM) module containing 8,388,608 bytes organized in an x8bit
configuration. The module consists of four 2M x 8 FROM mounted on a 80-pin, SMM connector FR4-printed circuit board.
Commands are written to the command register using standard microprocessor write timings.
Register contents serve as input to an internal state-machine, which controls the erase and programming circuitry. Write cycles
also internally latch addresses and data needed for the programming and erase operations. Reading data out of the device is
similar to reading from 12.0V flash or EPROM devices.
Output enable (/OE) and write enable (/WE) can set the memory input and output. The host system can detect a program or
erase operation is complete by observing the Ready Pin, or reading the DQ7(Data # Polling) and DQ6(Toggle) status bits.
When FROM module is disable condition the module is becoming power standby mode, system designer can get low-power
design. All module components may be powered from a single +3V DC power supply and all inputs and outputs are LVTTL-
compatible.
PIN ASSIGNMENT
FEATURES
w Part identification
P1
P2
HMF8M8F4VS(Bottom boot block configuration)
PIN Symbol PIN Symbol
PIN
1
Symbol
Vcc
PIN
21
22
23
24
Symbol
Vcc
NC
w Access time: 90, 100, 120ns
w High-density 8MByte design
w High-reliability, low-power design
w Single + 3V to 3.6V power supply
w 80-Pin Designed
1
2
Vcc
A20
NC
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Vcc
NC
2
/CE1
/CE2
/CE3
3
DQ7
NC
3
NC
4
NC
4
NC
40-Pin, 0.8mm Fine Pitch Connector P1,P2
w Minimum 100,000 write cycle guarantee
per sector
5
NC
DQ6
NC
5
NC(/CE4) 25
NC(/CE5) 26
/OE
/CE0
Vss
A16
A0
6
/RY_BY
Vss
6
o
7
Vss
DQ5
NC
7
Vss
27
w 10-year data retention at 85 C
w Flexible sector architecture
w Embedded algorithms
8
/RESET
/WE
A19
A8
8
NC(/CE6) 28
NC(/CE7) 29
9
9
w Erase suspend / Erase resume
10
11
12
13
14
15
16
17
18
19
20
DQ4
NC
10
11
12
13
14
15
16
17
18
19
20
NC
NC
NC
NC
Vss
NC
NC
NC
NC
NC
Vcc
30
31
32
33
34
35
36
37
38
39
40
A18
A17
A7
OPTIONS
MARKING
A9
DQ3
NC
w Timing
A10
Vss
A6
90ns access
100ns access
120ns access
w Packages
SMM 80-pin
- 90
Vss
DQ2
NC
Vss
A5
-100
-120
A11
A12
A13
A14
A15
Vcc
A4
DQ1
NC
A3
F
A2
DQ0
Vcc
A1
Vcc
1
URL: www.hbe.co.kr
REV.02(August,2002)
HANBit Electronics Co., Ltd.