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PDF TMM2464AF Data sheet ( Hoja de datos )
| Número de pieza | TMM2464AF | |
| Descripción | ONE TIME PROGRAMMABLE READ ONLY MEMORY | |
| Fabricantes | Toshiba | |
| Logotipo |  |
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TOSHIBA MOS MEMORY PRODUCT
TMM2464AP/AF 8,192 WORD X 8 BIT
ONE TIME PROGRAMMABLE READ ONLY MEMORY
N CHANNEL SILICON STACKED GATE MOS
TMM2464AP/AF
DESCRIPTION
The TMM2464APjAF is a 8,192 word x 8 bit
one time programmable read only memory, and
molded in a 28 pin plastic DIP.
The TMM2464APjAF's access time is 200ns,
and has low power standby mode which reduces the
power dissipation without increasing access time.
The electrical characteristics and programming
method are the same as U. V. EPROM TMM-
2764AD's.
Once programed, the TMM2464APjAF can not
be erased because of using plastic DIP without
transparent window.
FEATURES
o Single 5 volt power supply
-Fast access time: 200ns (Max.)
o Power dissipation 1OOmA(active current) Max.
: 30mA(standby current) Max.
o Low power standby mode: CE
o Output buffer control
OE
o Full static operation
• High speed programming mode
• Three state outputs
o Inputs and outputs TTL compatible
oCompatible with TMM2764AD and ROM
TMM2365P, TC5365P.
028 PIN standard plastic package: TMM2464AP
.28 PIN flat package
TMM2464AF
PIN CONNECTION (TOP VIEW)
Vpp vcc
A12 PGM
N.C.
A6 A8
A9
All
A3 DE
A2 AIO
Al CE
AD 07
00 06
01 05
02 04
03
PIN NAMES
Ao-AI2
0 0-07
CE
OE
PGM
N.C.
Vpp
Vee
GND
Address Inputs
Outputs (Inputs)
Chip Enable Input
Output Enable Input
Program Control Input
No Connection
Program Supply Voltage
Vee Supply Voltage (+ 5V)
Ground
BLOCK DIAGRAM
OND Vee
00 01 0203 04 05 06 07
OE
CB
_POM~ _~______~~
AD
Al
A2
A3
A4
A5
A6
A7
AS
A9
AID
All
A12
DBCODEH
iVlODE SELECTION
"-~ PIN
MO~,
PGM CE OE
(27) (20) (22)
Vpp
(1)
Vce
(28)
0 0 -07
(11-13,15-19)
Read
HL L
Data Out
Output
* *Deselect
H 5V 5V High Impedance
Standby
Program
Program
Inhibit
*H *
High Impedance
*L L
Data In
* *H High Impedance
12.5V 6V
HLH
High Impedance
Program
Verify
* H or L
HL L
Data Out
POWER
Active
Standby
Active
E-7 -
1 page  
TIMING WAVEFORMS (HIGH SPEED PROGRAM)
TMM2464AP/AF
Vpp
PROGRAM
PROGRAM
VERIFY
INITIAL PROGRAM
PROGRAM
ADDITIONAL PROGRAM
Note: 1. Vee must be applied simultaneously or before Vpp and cut off simultaneously or after VPP.
2. Removing the device from socket and setting the device in socket with Vpp= 12. 5V may cause permanent
damage to the device.
3. The Vpp supply voltage is permitted up to 14V for program operation. so the voltage over 14V should not be
applied to the Vpp terminal.
When the switching pulse voltage is applied to the Vpp terminal. the overshoot voltage of its pulse should not
be exceeded 14V.
- E-11 -
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet TMM2464AF.PDF ] | |
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