UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 577

• Manufacturer Part Number: UPD78F0537DGA(T)-9EV-A
• Description: 8BIT MCU, 128K FLASH, 7KB RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F0537DGA(T)-9EV-A

• Controller Family/series: UPD78
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

26.6 Handling of Pins on Board
provided on the target system. First provide a function that selects the normal operation mode or flash memory
programming mode on the board.
the same status as immediately after reset. Therefore, if the external device does not recognize the state immediately
after reset, the pins must be handled as described below.
26.6.1 FLMD0 pin
write voltage is supplied to the FLMD0 pin. An FLMD0 pin connection example is shown below.
26.6.2 Serial interface pins
device on the board, care must be exercised so that signals do not collide or that the other device does not
malfunction.
To write the flash memory on-board, connectors that connect the dedicated flash memory programmer must be
When the flash memory programming mode is set, all the pins not used for programming the flash memory are in
In the normal operation mode, 0 V is input to the FLMD0 pin. In the flash memory programming mode, the V
The pins used by each serial interface are listed below.
To connect the dedicated flash memory programmer to the pins of a serial interface that is connected to another
CSI10
UART6
78K0/KE2
FLMD0
Table 26-5. Pins Used by Each Serial Interface
Figure 26-8. FLMD0 Pin Connection Example
Serial Interface
CHAPTER 26 FLASH MEMORY
User’s Manual U17260EJ6V0UD
10 k Ω (recommended)
SO10, SI10, SCK10
TxD6, RxD6
Dedicated flash memory
programmer connection pin
Pins Used
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