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| 型号： | PIC14000T-20/SS |
| 厂商： | Microchip Technology |
| 文件页数： | 143/153页 |
| 文件大小： | 0K |
| 描述： | IC MCU OTP 4KX14 A/D 28SSOP |
| 标准包装： | 2,100 |
| 系列： | PIC® 14 |
| 核心处理器： | PIC |
| 芯体尺寸： | 8-位 |
| 速度： | 20MHz |
| 连通性： | I²C |
| 外围设备： | POR，温度传感器，WDT |
| 输入/输出数： | 20 |
| 程序存储器容量： | 7KB（4K x 14） |
| 程序存储器类型： | OTP |
| RAM 容量： | 192 x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.7 V ~ 6 V |
| 数据转换器： | 斜率 A/D |
| 振荡器型： | 内部 |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 包装： | 带卷 (TR) |
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1996 Microchip Technology Inc.
Preliminary
DS40122B-page 9
PIC14000
TABLE 3-1:
PIN DESCRIPTIONS
Pin Name
Pin
No.
I/O
Pin Type
Input Output
Description
CDAC
22
O
—
AN
A/D ramp current source output. Normally connected to
external capacitor to generate a linear voltage ramp.
RA0/AN0
2
I/O
AN/ST
CMOS
Analog input channel 0. This pin can also serve as a
general-purpose I/O.
RA1/AN1
1
I/O
AN/ST
CMOS
Analog input channel 1. This pin can connect to a level
shift network. If enabled, a +0.5V offset is added to the
input voltage. This pin can also serve as a general-
purpose I/O.
RA2/AN2
28
I/O
AN/ST
CMOS
Analog input channel 2. This pin can also serve as a
general purpose digital I/O.
RA3/AN3
27
I/O
AN/ST
CMOS
Analog input channel 3. This pin can also serve as a gen-
eral purpose digital I/O.
SUM
21
O
—
AN
AN1 summing junction output. This pin can be connected
to an external capacitor for averaging small duration
pulses.
RC0/REFA
19
I/O-PU
ST
CMOS
LED direct-drive output or programmable reference A out-
put. This pin can also serve as a GPIO. If enabled, this
pin has a weak internal pull-up to VDD.
RC1/CMPA
18
I/O-PU
ST
CMOS
LED direct-drive output or comparator A output. This pin
can also serve as a GPIO. If enabled, this pin has a weak
internal pull-up to VDD.
RC2
17
I/O-PU
ST
CMOS
LED direct-drive output. This pin can also serve as a
GPIO. If enabled, this pin has a weak internal pull-up to
VDD
RC3/T0CKI
16
I/O-PU
ST
CMOS
LED direct-drive output. This pin can also serve as a
GPIO, or an external clock input for Timer0. If enabled,
this pin has a weak internal pull-up to VDD.
RC4
15
I/O-PU
ST
CMOS
LED direct-drive output. This pin can also serve as a
GPIO. If enabled, a change on this pin can cause a CPU
interrupt. If enabled, this pin has a weak internal pull-up
to VDD.
RC5
13
I/O-PU
ST
CMOS
LED direct-drive output. This pin can also serve as a
GPIO. If enabled, a change on this pin can cause a CPU
interrupt. If enabled, this pin has a weak internal pull-up
to VDD.
RC6/SCLA
12
I/O
ST/SM
NPU/OD
(No P-diode)
General purpose I/O. If enabled, is multiplexed as
synchronous serial clock for I2C interface. Also is the
serial programming clock. If enabled, a change on this pin
can cause a CPU interrupt. This pin has an N-channel
pull-up device which is disabled in I2C mode.
RC7/SDAA
11
I/O
ST/SM
NPU/OD
(No P-diode)
General purpose I/O. If enabled, is multiplexed as
synchronous serial data I/O for I2C interface. Also is the
serial programming data line. If enabled, a change on this
pin can cause a CPU interrupt. This pin has an N-channel
pull-up device which is disabled in I2C mode.
RD0/SCLB
6
I/O
ST/SM
NPU/OD
(No P-diode)
General purpose I/O. If enabled, is multiplexed as
synchronous serial clock for I2C interface. This pin has an
N-channel pull-up device which is disabled in I2C mode.
RD1/SDAB
5
I/O
ST/SM
NPU/OD
(No P-diode)
General purpose I/O. If enabled, is multiplexed as
synchronous serial data I/O for I2C interface. This pin has
an N-channel pull-up device which is disabled in I2C
mode.
RD2/CMPB
4
I/O-PU
AN/ST
CMOS
General purpose I/O or comparator B output.
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