UPD78F1154GK-GAK-AX NEC, UPD78F1154GK-GAK-AX Datasheet - Page 35

• Manufacturer Part Number: UPD78F1154GK-GAK-AX
• Description: 16BIT MCU, 128K FLASH, 8K RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F1154GK-GAK-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 70
• Ram Memory Size: 8192Byte
• Cpu Speed: 20MHz
• No. Of Timers: 9
• No. Of: RoHS Compliant
• Core Size: 16bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

7.3 Timer Array Unit (TAU)
independent timer. In addition, two or more “channels” can be used to create a high-accuracy timer.
7.3.1 Functional outline of timer array unit
The timer array unit has eight 16-bit timers per unit. Each 16-bit timer is called a channel and can be used as an
Channel 7 can be used to realize LIN-bus reception processing in combination with UART3 of serial array unit 1.
<Functions of each channel when it operates independently>
(1) Interval timer
(2) Square wave output
(3) External event counter
(6) Measurement of high-/low-level width of input signal
Remark n: Channel number (n = 0 to 7)
operation mode of the other channel.
(4) Divider function
(5) Input pulse interval measurement
Independent operation functions are those functions that can be used for any channel regardless of the
Each timer of a unit can be used as a reference timer that generates an interrupt (INTTM0n) at fixed intervals.
A toggle operation is performed each time INTTM0n is generated and a square wave with a duty factor of 50%
is output from a timer output pin (TO0n).
Each timer of a unit can be used as an event counter that generates an interrupt when the number of the valid
edges of a signal input to the timer input pin (TI0n) has reached a specific value.
A clock input from a timer input pin (TI0n) is divided and output from an output pin (TO0n).
Counting is started by the valid edge of a pulse signal input to a timer input pin (TI0n). The count value of the
timer is captured at the valid edge of the next pulse. In this way, the interval of the input pulse can be
measured.
Counting is started by a single edge of the signal input to the timer input pin (TI0n), and the count value is
captured at the other edge. In this way, the high-level or low-level width of the input signal can be measured.
• Interval timer
• Square wave output
• External event counter
• Divider function
• Input pulse interval measurement
• Measurement of high-/low-level width of input signal
Independent Operation Function
Preliminary Product Information U17892EJ2V0PM
• PWM output
• One-shot pulse output
• Multiple PWM output
Combination Operation Function
78K0R/KF3
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