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参数资料
| 型号： | 784215A |
| 厂商： | NEC Corp. |
| 英文描述： | MOS INTEGRATED CIRCUIT |
| 中文描述： | 马鞍山集成电路 |
| 文件页数： | 17/100页 |
| 文件大小： | 564K |
| 代理商： | 784215A |
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Data Sheet U14121EJ2V0DS00
17
μ
PD784214A, 784215A, 784216A, 784217A, 784218A, 784214AY, 784215AY, 784216AY, 784217AY, 784218AY
www.DataSheet4U.com
5.2 Non-Port Pins (2/2)
Pin Name
I/O
Alternate Function
Function
PCL
Output
P23
Clock output (for trimming main system clock and subsystem clock)
BUZ
Output
P24
Buzzer output
RTP0 to RTP7
Output
P120 to P127
Real-time output port that outputs data in synchronization with
trigger
AD0 to AD7
I/O
P40 to P47
Lower address/data bus for expanding memory externally
A0 to A7
P80 to P87
Lower address bus for expanding memory externally
A8 to A15
P50 to P57
Middle address bus for expanding memory externally
A16 to A19
Output
P60 to P63
Higher address bus for expanding memory externally
RD
P64
Strobe signal output for reading from external memory
WR
Output
P65
Strobe signal output for writing to external memory
WAIT
Input
P66
Wait insertion at external memory access
ASTB
Output
P67
Strobe output that externally latches address information output to
ports 4 through 6 and 8 to access external memory
EXA
Note
Output
P37
Status signal output at external memory access
RESET
Input
System reset input
X1
Input
X2
Connecting crystal resonator for main system clock oscillation
XT1
Input
XT2
Connecting crystal resonator for subsystem clock oscillation
ANI0 to ANI7
Input
P10 to P17
A/D converter analog input
ANO0, ANO1
Output
P130, P131
D/A converter analog output
AV
REF0
A/D converter reference voltage input
AV
REF1
D/A converter reference voltage input
AV
DD
A/D converter positive power supply. Connect to V
DD
.
AV
SS
GND for A/D converter and D/A converter. Connect to V
SS
.
V
DD
Positive power supply
V
SS
GND
TEST
Connect this pin to V
SS
directly or via a pull-down resistor. For the
pull-down connection, it is recommended to use a resistor with a
resistance ranging from 470
to 10 k
(this pin is for IC test).
Note
This function is available in
μ
PD784218A, 784218AY Subseries products only.
相关PDF资料 |
PDF描述 |
|---|---|
| 784215AY | MOS INTEGRATED CIRCUIT |
| 784216A | MOS INTEGRATED CIRCUIT |
| 784216AY | MOS INTEGRATED CIRCUIT |
| 784217A | MOS INTEGRATED CIRCUIT |
| 784217AY | MOS INTEGRATED CIRCUIT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 784215AY | 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT |
| 784216A | 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT |
| 784216AY | 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT |
| 784217A | 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT |
| 784217AY | 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT |
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