M37733EHBXXXFP Datasheet, PDF (10/34 Pages) Mitsubishi Electric Semiconductor – PROM VERSION OF M37733MHBXXXFP(MICROCOMPUTERS)

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MITSUBISHI MICROCOMPUTERS
M37733EHBXXXFP
M37733EHBFS
PROM VERSION OF M37733MHBXXXFP
FUNCTION IN EPROM MODE
1M mode (equivalent to the M5M27C101K)
Reading
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To read the EPROM, set the CE and OE pins to a “L” level. Input the
address of the data (A0 – A16) to be read, and the data will be output
to the I/O pins D0 – D7. The data I/O pins will be floating when either
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the CE or OE pins are in the “H” state.
Programming
Programming must be performed in 8 bits by a byte program. To
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program to the EPROM, set the CE pin to a “L” level and the OE pin to
a “H” level. The CPU will enter the programming mode when 12.5 V
is applied to the VPP pin. The address to be programmed to is selected
with pins A0 – A16, and the data to be programmed is input to pins D0
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– D7. Set the PGM pin to a “L” level to being programming.
Erasing
To erase data on this chip, use an ultraviolet light source with a 2537
Angstrom wave length. The minimum radiation power necessary for
erasing is 15 J/cm².
Programming operation
To program the M37733EHBXXXFP, first set VCC = 6 V, VPP = 12.5
V, and set the address to 0100016. Apply a 0.2 ms programming
pulse, check that the data can be read, and if it cannot be read OK,
repeat the procedure, applying a 0.2 ms programming pulse and
checking that the data can be read until it can be read OK. Record
the accumulated number of pulse applied (X) before the data can be
read OK, and then write the data again, applying a further once this
number of pulses (0.2 ! X ms).
When this series of programming operations is complete, increment
the address, and continue to repeat the procedure above until the
last address has been reached.
Finally, when all addresses have been programmed, read with VCC =
VPP = 5 V (or VCC = VPP = 5.5 V).
Table 2. I/O signal in each mode
Mode
Pin ^___
CE
Read-out
VIL
Output
VIL
Disable
VIH
Programming
VIL
Programming
VIL
Verify
Program Disable VIH
___ _____
OE PGM VPP VCC
VIL X 5 V 5 V
VIH X 5 V 5 V
X X 5V 5V
VIH VIL 12.5 V 6 V
VIL VIH 12.5 V 6 V
VIH VIH 12.5 V 6 V
Note 1 : An X indicates either VIL or VIH.
Data I/O
Output
Floating
Floating
Input
Output
Floating
Programming operation (equivalent to the M5M27C101K)
AC ELECTRICAL CHARACTERISTICS (Ta = 25 ± 5 °C, VCC = 6 V ± 0.25 V, VPP = 12.5 ± 0.3 V, unless otherwise noted)
Symbol
tAS
tOES
tDS
tAH
tDH
tDFP
tVCS
tVPS
tPW
tOPW
tCES
tOE
Parameter
Address setup time
___
OE setup time
Data setup time
Address hold time
Data hold time
Output enable to output float delay
VCC setup time
VPP setup time
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PGM pulse width
_____
PGM over program pulse width
___
CE setup time
__
Data valid from OE
Test conditions
Min.
2
2
2
0
2
0
2
2
0.19
0.19
2
Limits
Typ.
0.2
Unit
Max.
µs
µs
µs
µs
µs
130
ns
µs
µs
0.21
ms
5.25
ms
µs
150
ns
10