HANBit
HMF25664F4VP
FLASH-ROM MODULE 2MByte (256K x 64-Bit) ,120PIN SMM,3.3V
Part No. HMF25664F4VP
GENERAL DESCRIPTION
The HMF25664F4VPis a high-speed flash read only memory (FROM) module containing 262,144 words organized in an
x64bit configuration. The module consists of four 256K x 16 FROM mounted on a 120-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 +3.0V DC power supply and all inputs and outputs are LVTTL-
compatible
PIN ASSIGNMENT
P1
P2
FEATURES
Symb
ol
Symb
ol
Symb
ol
PIN
PIN
PIN
PIN
Symbol
w Access time : 50, 55, 70, 90 and 120ns
w High-density 2MByte design
w High-reliability, low-power design
w Single + 3V ± 0.3V power supply
w Easy memory expansion
1
Vcc
DQ32
DQ33
DQ34
DQ35
DQ36
DQ37
DQ38
DQ39
Vcc
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
Vss
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
Vss
1
Vcc
DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
Vcc
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
Vss
DQ48
DQ49
DQ50
DQ51
DQ52
DQ53
DQ54
DQ55
Vss
2
2
3
3
4
4
5
5
6
6
7
7
w Hardware reset pin(RESET#)
w FR4-PCB design
8
8
9
9
w
120-Pin Designed
by 60-Pin Fine Pitch
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Connector P1,P2
DQ40
DQ41
DQ42
DQ43
DQ44
DQ45
DQ46
DQ47
Vcc
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
Vss
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
Vcc
DQ56
DQ57
DQ58
DQ59
DQ60
DQ61
DQ62
DQ63
Vss
w Minimum 1,000,000 write cycle guarantee per
sector
o
w 20-year data retention at 125
w Flexible sector architecture
w Embedded algorithms
C
w Erase suspend / Erase resume
OPTIONS
w Timing
MARKING
A1
A10
NC
NC
A2
A11
A0
/BANK0
Vss
50ns access
55ns access
70ns access
90ns access
120ns access
w Packages
120-pin SMM
-50
-55
A3
A12
A16
A4
A13
/WE1
/WE2
Vcc
/BYTE
/WE3
Vss
-70
A5
A14
Vcc
Vss
-90
A6
A15
/OE
/RES
ET
NC
-120
27
28
A7
A8
57
58
A17
NC
27
28
57
58
NC
NC
/WE0
F
/RY_B
Y
Vcc
29
30
A9
59
60
NC
29
30
59
60
NC
Vcc
Vss
Vss
1
URL: www.hbe.co.kr
REV.02(August,2002)
HANbit Electronics Co., Ltd.