PIC16C765T-I/L Datasheet

IC型号：
PIC16C765T-I/L
PDF描述：
IC MCU OTP 8KX14 USB 44PLCC
文件大小：
4945.70KB
PDF页数：
165页
芯片厂家：
Microchip

阅览下载纠错 0

扫码查看芯片数据手册

上传产品规格书

PDF预览

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158

PIC16C745/765

6.2

Using Timer0 with an External Clock

The PSA and PS<2:0> bits (OPTION_REG<3:0>) deter-

mine the prescaler assignment and prescale ratio.

When assigned to the Timer0 module, all instructions

writing to the TMR0 register (e.g.

CLRF 1, MOVWF 1,

BSF 1,x....etc.)

will clear the prescaler. When assigned

to WDT, a

CLRWDT

instruction will clear the prescaler

along with the watchdog timer. The prescaler is not

readable or writable.

Note:

Writing to TMR0, when the prescaler is

assigned to Timer0, will clear the prescaler

count, but will not change the prescaler

assignment.

When no prescaler is used, the external clock input is

the same as the prescaler output. The synchronization

of T0CKI with the internal phase clocks is accom-

plished by sampling the prescaler output on the Q2 and

Q4 cycles of the internal phase clocks. Therefore, it is

necessary for T0CKI to be high for at least 2Tosc (and

a small RC delay of 20 ns) and low for at least 2Tosc

(and a small RC delay of 20 ns). Refer to the electrical

specification of the desired device.

6.3

Prescaler

There is only one prescaler available which is mutually

exclusively shared between the Timer0 module and the

watchdog timer. A prescaler assignment for the Timer0

module means that there is no prescaler for the watch-

dog timer, and vice-versa. This prescaler is not readable

or writable (see Figure 6-1).

To avoid an unintended device RESET, the following

instruction sequence (shown in Example 6-1) must be

executed when changing the prescaler assignment

from Timer0 to the WDT. This sequence must be fol-

lowed even if the WDT is disabled.

EXAMPLE 6-1:

CHANGING PRESCALER (TIMER0鈫扺DT)

BSF

MOVLW

MOVWF

BCF

CLRF

BSF

MOVLW

MOVWF

CLRWDT

b鈥檟xxx1xxx鈥?/div>

OPTION_REG

STATUS, RP0

b鈥檟x0x0xxx鈥?/div>

OPTION_REG

STATUS, RP0

TMR0

STATUS, RP1

b鈥檟xxx1xxx鈥?/div>

OPTION_REG

;Bank1

;Select clock source and prescale value of

;other than 1:1

;Bank0

;Clear TMR0 and prescaler

;Bank1

;Select WDT, do not change prescale value

;

;Clears WDT and prescaler

;Select new prescale value and WDT

;

;Bank0

Lines 2 and 3 do

NOT have to be

included if the final

desired prescale

value is other than

1:1. If 1:1 is the final

desired value, then a

temporary prescale

value is set in lines 2

and 3 and the final

prescale value will

be set in lines 10

and 11.

10) MOVLW

11) MOVWF

12) BCF

TABLE 6-1:

Address

01h,101h

0Bh,8Bh,

10Bh,18Bh

81h,181h

REGISTERS ASSOCIATED WITH TIMER0

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Value on:

POR,

BOR

xxxx xxxx

INTE

T0SE

RBIE

PSA

T0IF

PS2

INTF

PS1

RBIF

PS0

0000 000x

1111 1111

Value on all

other resets

uuuu uuuu

0000 000u

1111 1111

TMR0

INTCON

Timer0 module鈥檚 register

GIE

PEIE

T0IE

T0CS

OPTION_REG RBPU INTEDG

Legend:

= unknown,

= unchanged,

= unimplemented locations read as '0'. Shaded cells are not used by Timer0.

DS41124A-page 44

Advanced Information

漏

1999 Microchip Technology Inc.

prev next

PIC16C765T-I/L 产品属性

制造商
Microchip
产品种类
8-bit Microcontrollers (MCU)
核心
PIC
处理器系列
PIC16
数据总线宽度
8 bit
最大时钟频率
24 MHz
程序存储器大小
14 KB
数据 RAM 大小
256 B
片上 ADC
Yes
工作电源电压
4.35 V to 5.25 V
封装 / 箱体
PLCC-44
安装风格
SMD/SMT
A/D 位大小
8 bit
可用 A/D 通道
8
数据 ROM 大小
256 B
高度
3.87 mm
接口类型
USART, USB
长度
16.59 mm
最大工作温度
+ 85 C
最小工作温度
- 40 C
可编程输入/输出端数量
33
定时器数量
3 bit
封装
Reel
程序存储器类型
EPROM
工厂包装数量
500
Supply Voltage - Max
5.25 V
Supply Voltage - Min
4.35 V
宽度
16.59 mm

PIC16C765T-I/L相关型号PDF文件下载

型号

版本

描述

厂商

下载
PIC12

英文版

8-Pin FLASH-Based 8-Bit CMOS Microcontrollers

PIC12
PIC12

英文版

8-Pin, 8-Bit CMOS Microcontroller with EEPROM Data Memory

MICROCHIP ...

PIC12
PIC12

英文版

8-Pin, 8-Bit CMOS Microcontroller with A/D Converter and EEP...

MICROCHIP ...

PIC12
PIC12

英文版

8-Pin, 8-Bit CMOS Microcontrollers

MICROCHIP ...

PIC12
PIC12

英文版

EPROM Memory Programming Specification

MICROCHIP ...

PIC12
PIC12

英文版

8-Pin FLASH-Based 8-Bit CMOS Microcontrollers

MICROCHIP ...

PIC12
PIC18

英文版

Microcontroller

PIC18
PIC10F

英文版

Microcontroller

PIC10F
PIC1657

英文版

Microcontroller

ETC

PIC1657
PIC16C5

英文版

EPROM-Based 8-Bit CMOS Microcontroller

PIC16C5
PIC12C50

英文版

8-Pin, 8-Bit CMOS Microcontrollers

PIC12C50
PIC12C50

英文版

8-Pin, 8-Bit CMOS Microcontrollers

MICROCHIP ...

PIC12C50
PIC12C5X

英文版

ETC

PIC12C5X
PIC12C67

英文版

EPROM Memory Programming Specification

PIC12C67
PIC12C67

英文版

EPROM Memory Programming Specification

MICROCHIP ...

PIC12C67
PIC14000

英文版

28-Pin Programmable Mixed Signal Controller

PIC14000
PIC14000

英文版

EPROM Memory Programming Specification

PIC14000
PIC1657I

英文版

Microcontroller

ETC

PIC1657I
PIC1657M

英文版

Microcontroller

ETC

PIC1657M
PIC16C52

英文版

EPROM/ROM-Based 8-Bit CMOS Microcontroller Series

PIC16C52

PIC16C765T-I/L Datasheet

PDF预览

PIC16C765T-I/L 产品属性

PIC16C765T-I/L相关型号PDF文件下载

您可能感兴趣的PDF文件资料

热门IC型号推荐

PIC16C765T-I/L Datasheet

PDF预览

PIC16C765T-I/L 产品属性

PIC16C765T-I/L相关型号PDF文件下载

您可能感兴趣的PDF文件资料

热门IC型号推荐

建议反馈

PDF纠错X