参数资料
型号: PICREF-1
英文描述: SOT-23, Rail-to-Rail Output, Picoamp Input Current Precision Op Amp; Package: SOT; No of Pins: 5; Temperature Range: -40°C to +85°C
中文描述: PICREF - 2文件
文件页数: 42/64页
文件大小: 694K
代理商: PICREF-1
46
CHAPTER 3
PIN FUNCTION (
PD780308 SUBSERIES)
User’s Manual U11377EJ3V0UD
(2) Non-port pins (2/2)
Pin Name
I/O
Function
After Reset
Alternate Function
AVSS
A/D converter ground potential. Same potential as VSS0.—
RESET
Input
System reset input.
X1
Input
Crystal connection for main system clock oscillation.
X2
——
XT1
Input
Crystal connection for subsystem clock oscillation.
Input
P07
XT2
——
VDD0
Positive power supply to port.
VSS0
Ground potential of port.
VDD1
Positive power supply (except ports, analogs).
VSS1
Ground potential (except ports, analogs).
VPP
High-voltage application for program write/verify. Connect directly to
VSS0 or VSS1 in normal operating mode.
IC
Internal connection. Connect directly to VSS0 or VSS1.—
3.1.2 PROM programming mode pins (
PD78P0308 only)
Pin Name
I/O
Function
RESET
Input
PROM programming mode setting.
When +5 V or +12.5 V is applied to the VPP pin or a low level voltage is applied to the RESET pin,
the PROM programming mode is set.
VPP
Input
High-voltage application for PROM programming mode setting and program write/verify.
A0 to A16
Input
Address bus.
D0 to D7
I/O
Data bus.
CE
Input
PROM enable input/program pulse input.
OE
Input
Read strobe input to PROM.
PGM
Input
Program/program inhibit input in PROM programming mode.
VDD
Positive power supply.
VSS
Ground potential.
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