tmp90p802ap ETC-unknow, tmp90p802ap Datasheet - Page 8

• Manufacturer Part Number: tmp90p802ap
• Manufacturer: ETC-unknow

TMP90P802A
8/14
(3)
The Security Bit
PROM (0000H ~ 1FFFH)
The Mode Bit and the Security Bit
The TMP90P802A has the Security Bit in PROM cell.
If the Sercuity Bit is programmed to “0”, the content of
the PROM is disable to read in PROM mode.
Bit to Program
Table 3.1 Data to Program
Figure 3.3. Flow Chart
D0 ~ D7
FEH
–
How to Program the Security Bit.
1) Connect A15 pins to V
2) Set programming address to 0000H.
3) To program the Security Bit, set D0 to “0”.
4) Set D2 ~ D7 to “1” respectively.
The following table shows the 8-bit data to program
The Security Bit.
them to GND to program PROM]
A0 ~ A12
All “0”
–
TOSHIBA CORPORATION
CC
. [Otherwise connect
A13, A14, A15
A13, A14 = “0”
A15 = “1”
All “0”