PIC16C74A-20/L Microchip Technology, PIC16C74A-20/L Datasheet - Page 207

• Manufacturer Part Number: PIC16C74A-20/L
• Description: IC MCU OTP 4KX14 A/D PWM 44PLCC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C74A-20/L

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Type: OTP
• Ram Size: 192 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 6 V
• Data Converters: A/D 8x8b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-PLCC
• Controller Family/series: PIC16C
• No. Of I/o's: 33
• Ram Memory Size: 192Byte
• Cpu Speed: 10MHz
• No. Of Timers: 3
• Interface: I2C, SPI, USART
• Embedded Interface Type: I2C, SPI, USART
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164309 - MODULE SKT FOR PM3 44PLCC444-1001 - DEMO BOARD FOR PICMICRO MCUDVA16XL441 - ADAPTER DEVICE ICE 44PLCCDV007003 - PROGRAMMER UNIVERSAL PROMATE II
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

19.5
FIGURE 19-2: EXTERNAL CLOCK TIMING
TABLE 19-2:
Note 1: Instruction cycle period (T
Parameter
1997 Microchip Technology Inc.
CLKOUT
No.
OSC1
†
1
2
3
4
Timing Diagrams and Specifications
Data in "Typ" column is at 5V, 25˚C unless otherwise stated. These parameters are for design guidance only and are not
tested.
characterization data for that particular oscillator type under standard operating conditions with the device executing code.
Exceeding these specified limits may result in an unstable oscillator operation and/or higher than expected current con-
sumption. All devices are tested to operate at "min." values with an external clock applied to the OSC1/CLKIN pin.
When an external clock input is used, the "Max." cycle time limit is "DC" (no clock) for all devices.
TosR,
TosL,
TosH
Sym
Fosc
TosF
Tosc
T
CY
EXTERNAL CLOCK TIMING REQUIREMENTS
Characteristic
External CLKIN Frequency
(Note 1)
Oscillator Frequency
(Note 1)
External CLKIN Period
(Note 1)
Oscillator Period
(Note 1)
Instruction Cycle Time (Note 1)
External Clock in (OSC1) High or
Low Time
External Clock in (OSC1) Rise or
Fall Time
Q4
CY
) equals four times the input oscillator time-base period. All specified values are based on
Q1
1
Q2
Min
250
250
100
250
250
250
100
200
100
DC
DC
DC
DC
DC
DC
0.1
2.5
50
50
15
—
—
—
4
5
5
5
2
Applicable Devices 72 73 73A 74 74A 76 77
Typ†
T
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
3
CY
Q3
10,000
3
Max
200
200
250
250
250
DC
10
20
20
25
50
15
—
—
—
—
—
—
—
—
—
—
4
4
4
4
Units Conditions
MHz
MHz
MHz
MHz
MHz
MHz
MHz
kHz
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Q4
s
s
s
4
HS osc mode
LP osc mode
LP osc mode
HS osc mode (-10)
HS osc mode (-20)
LP osc mode
LP oscillator
XT and RC osc mode
HS osc mode (-04)
HS osc mode (-10)
HS osc mode (-20)
LP osc mode
RC osc mode
XT osc mode
XT and RC osc mode
HS osc mode (-04)
HS osc mode (-10)
HS osc mode (-20)
RC osc mode
XT osc mode
HS osc mode (-04)
T
XT oscillator
HS oscillator
XT oscillator
LP oscillator
HS oscillator
CY
PIC16C7X
4
= 4/F
OSC
DS30390E-page 207
Q1