參數(shù)資料
型號(hào): TMP90PH48
廠商: Toshiba Corporation
英文描述: A System Evaluation LSI With 8-Bit CPU,One-Time PROM(16384 x 8-Bit),RAM(512 x 8-Bit)(系統(tǒng)評(píng)估大規(guī)模集成電路(集成8位CPU,一次可編程ROM(16384 x 8位),RAM(512 x 8位))
中文描述: 一個(gè)系統(tǒng)評(píng)價(jià)芯片與8位CPU,一次性可編程(16384 × 8位),內(nèi)存(512 × 8位)(系統(tǒng)評(píng)估大規(guī)模集成電路(集成8位的CPU,一次可編程ROM更新(16384 x 8位),內(nèi)存(512 × 8位))
文件頁(yè)數(shù): 5/14頁(yè)
文件大?。?/td> 417K
代理商: TMP90PH48
TOSHIBA CORPORATION
5/14
TMP90PH48
Table 2.2 (2/2)
Pin name
No. of pins
I/O or tristate
Function
P84
/INT2
/TI5
1
I/O
Port 84: 1-bit I/O port.
Input
Interrupt request pin 2: Rising edge programmable interrupt request pin.
Input
Timer input 5: Count input/capture trigger signal for timer 5.
P85
/T04
1
I/O
Port 85: 1-bit I/O port.
Output
Timer output 4: used as the timer 4 output.
ALE
1
Output
Address latch enable signal: The falling edge of this signal used as the timing to latch AD0 ~ AD7 addresses
when accessing external memory.
CLK
1
Output
Clock output: Generates clock pulse at 1/4 frequency of clock oscillation.
Pulled up during resetting.
EA
1
Input
External access: Connected to the V
CC
pin when using the TMP90C848F with built-in ROM.
RESET
1
Input
Reset: Initializes the TMP90C848F.
X1/X2
2
I/O
High-speed crystal oscillator connection pin.
X1’/X2’
2
I/O
Low-speed crystal oscillator connection pin.
TEST1/TEST2
2
I/O
Testing pins Connects directly TEST1 and TEST2 at a normal state operation.
AVCC
1
Comparator power supply for the A/D converter.
VREF
1
A/D converter reference voltage input.
AVSS
1
Analog GND pin (0V)
V
CC
2
Power supply (+5V
±
10%)
V
SS
3
GND pin
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