tmp86c847iug TOSHIBA Semiconductor CORPORATION, tmp86c847iug Datasheet - Page 149

• Manufacturer Part Number: tmp86c847iug
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

14. Input/Output Circuitry
14.1 Control Pins
Control Pin
XTOUT
RESET
XOUT
TEST
XTIN
XIN
The input/output circuitries of the TMP86C847IUG control pins are shown below.
Note: The TEST pin of the TMP86PM47/PH47 does not have a pull-down resistor and protect diode (D1). Fix the TEST pin at low-
level.
Output
Output
Input
Input
Input
I/O
I/O
Watchdog timer reset
Osc. enable
System clock reset
Address trap reset
Osc. enable
VDD
VDD
XTIN
Input/Output Circuitry
XIN
R
R
Page 141
IN
Rf
Rf
XTEN
XTOUT
XOUT
VDD
D
R
1
O
R
O
VDD
VDD
fc
VDD
IN
fs
Resonator connecting pins
(high-frequency)
Resonator connecting pins
(low-frequency)
Hysteresis input
Pull-up resistor
Pull-down resistor
R
R
R
R
R
R = 1 kΩ (typ.)
R
R = 1 kΩ (typ.)
f
O
f
O
IN
IN
= 1.2 MΩ (typ.)
= 6 MΩ (typ.)
= 1.5 kΩ (typ.)
= 220 kΩ (typ.)
= 220 kΩ (typ.)
= 70 kΩ (typ.)
Remarks
TMP86C847IUG