参数资料
型号: PIC12C508AT-04/SN
厂商: Microchip Technology
文件页数: 82/113页
文件大小: 0K
描述: IC MCU OTP 512X12 8SOIC
产品培训模块: Asynchronous Stimulus
标准包装: 3,300
系列: PIC® 12C
核心处理器: PIC
芯体尺寸: 8-位
速度: 4MHz
外围设备: POR,WDT
输入/输出数: 5
程序存储器容量: 768B(512 x 12)
程序存储器类型: OTP
RAM 容量: 25 x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 5.5 V
振荡器型: 内部
工作温度: 0°C ~ 70°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
配用: 309-1046-ND - ADAPTER 8-SOIC TO 8-DIP
309-1045-ND - ADAPTER 8-SOIC TO 8-DIP
AC124001-ND - MODULE SKT PROMATEII 8DIP/SOIC
PIC12C5XX
DS40139E-page 70
1999 Microchip Technology Inc.
11.4
Timing Diagrams and Specifications
FIGURE 11-2: EXTERNAL CLOCK TIMING - PIC12C508/C509
TABLE 11-2:
EXTERNAL CLOCK TIMING REQUIREMENTS - PIC12C508/C509
AC Characteristics
Standard Operating Conditions (unless otherwise specified)
Operating Temperature
0
°C ≤ TA ≤ +70°C (commercial),
–40
°C ≤ TA ≤ +85°C (industrial),
–40
°C ≤ TA ≤ +125°C (extended)
Operating Voltage VDD range is described in Section 11.1
Parameter
No.
Sym
Characteristic
Min
Typ(1)
Max
Units
Conditions
FOSC
External CLKIN Frequency(2)
DC
4
MHz
XT osc mode
DC
200
kHz
LP osc mode
Oscillator Frequency(2)
0.1
4
MHz
XT osc mode
DC
200
kHz
LP osc mode
1TOSC
External CLKIN Period(2)
250
ns
EXTRC osc mode
250
ns
XT osc mode
5
ms
LP osc mode
Oscillator Period(2)
250
ns
EXTRC osc mode
250
10,000
ns
XT osc mode
5
ms
LP osc mode
2Tcy
Instruction Cycle Time(3)
—4/FOSC
——
3
TosL, TosH Clock in (OSC1) Low or High Time
50*
ns
XT oscillator
2*
ms
LP oscillator
4
TosR, TosF Clock in (OSC1) Rise or Fall Time
25*
ns
XT oscillator
50*
ns
LP oscillator
*
These parameters are characterized but not tested.
Note 1: Data in the Typical (“Typ”) column is at 5V, 25
°C unless otherwise stated. These parameters are for design
guidance only and are not tested.
2: All specified values are based on characterization data for that particular oscillator type under standard oper-
ating conditions with the device executing code. Exceeding these specified limits may result in an unstable
oscillator operation and/or higher than expected current consumption.
When an external clock input is used, the “max” cycle time limit is “DC” (no clock) for all devices.
3: Instruction cycle period (TCY) equals four times the input oscillator time base period.
OSC1
Q4
Q1
Q2
Q3
Q4
Q1
13
3
44
2
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