- Components/
- Integrated Circuits (ICs)/
- Embedded - Microcontrollers/
PIC16C74-04/L
PIC16C74-04/L | |
|---|---|
| Manufacturer Part Number | PIC16C74-04/L |
| Description | MICRO CTRL 4K 4MHZ OTP 44PLCC |
| Manufacturer | Microchip Technology |
| Series | PIC® 16C |
| PIC16C74-04/L datasheets |
|
Availability: By request
International delivery:
Warranty: 60 days
×
- We provide standard 60-days warranty for all parts. If warranty differs we always mention it beforehand. In case of return we cover shipping costs.
- If you still have any questions - please contact us
×
Shipping terms
- Standard delivery time differs from 5-8 business days if the supplier is a local one to 12-14 days if the suplier is from overseas. If delivery time differs it's always mentioned in our quotation.
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Payment terms
- For new client payment term is payment in advance. At this moment we accept 3 payment methods: wire transfer, PayPal and Western Union. Credit card payment is under constrution and will be introduced soon. Escrow service is acceptable. Net terms for regular customers is not a problem. Working with us is totally safe for you.
- If you still have any questions - please contact us
Specifications of PIC16C74-04/L | |||
|---|---|---|---|
| Core Processor | PIC | Core Size | 8-Bit |
| Speed | 4MHz | Connectivity | I²C, SPI, UART/USART |
| Peripherals | POR, PWM, WDT | Number Of I /o | 33 |
| Program Memory Size | 7KB (4K x 14) | 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 |
| For Use With | DVA16XL441 - ADAPTER DEVICE ICE 44PLCC | Lead Free Status / RoHS Status | Request inventory verification / Request inventory verification |
| Eeprom Size | - | ||
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PrevNext
PIC16C7X
2
11.4.2
ADDRESSING I
C DEVICES
There are two address formats. The simplest is the
7-bit address format with a R/W bit (Figure 11-15). The
more complex is the 10-bit address with a R/W bit
(Figure 11-16). For 10-bit address format, two bytes
must be transmitted with the first five bits specifying this
to be a 10-bit address.
FIGURE 11-15: 7-BIT ADDRESS FORMAT
MSb
S
slave address
S
Start Condition
R/W
Read/Write pulse
ACK
Acknowledge
2
FIGURE 11-16: I
C 10-BIT ADDRESS FORMAT
S 1 1 1 1 0 A9 A8 R/W ACK A7 A6 A5 A4 A3 A2 A1 A0 ACK
sent by slave
= 0 for write
S
- Start Condition
R/W
- Read/Write Pulse
ACK
- Acknowledge
11.4.3
TRANSFER ACKNOWLEDGE
All data must be transmitted per byte, with no limit to the
number of bytes transmitted per data transfer. After
each byte, the slave-receiver generates an acknowl-
edge bit (ACK) (Figure 11-17). When a slave-receiver
doesn’t acknowledge the slave address or received
data, the master must abort the transfer. The slave
must leave SDA high so that the master can generate
the STOP condition (Figure 11-14).
FIGURE 11-18: DATA TRANSFER WAIT STATE
SDA
MSB
SCL
S
1
2
Start
Address
Condition
DS30390E-page 90
Applicable Devices
72 73 73A 74 74A 76 77
FIGURE 11-17: SLAVE-RECEIVER
Data
Output by
Transmitter
Data
Output by
Receiver
SCL from
Master
S
LSb
Start
Condition
R/W ACK
Sent by
If the master is receiving the data (master-receiver), it
Slave
generates an acknowledge signal for each received
byte of data, except for the last byte. To signal the end
of data to the slave-transmitter, the master does not
generate an acknowledge (not acknowledge). The
slave then releases the SDA line so the master can
generate the STOP condition. The master can also
generate the STOP condition during the acknowledge
pulse for valid termination of data transfer.
If the slave needs to delay the transmission of the next
byte, holding the SCL line low will force the master into
a wait state. Data transfer continues when the slave
releases the SCL line. This allows the slave to move the
received data or fetch the data it needs to transfer
before allowing the clock to start. This wait state tech-
nique can also be implemented at the bit level,
Figure 11-18. The slave will inherently stretch the clock,
when it is a transmitter, but will not when it is a receiver.
The slave will have to clear the SSPCON<4> bit to
enable clock stretching when it is a receiver.
acknowledgment
byte complete
signal from receiver
interrupt with receiver
clock line held low while
interrupts are serviced
7
8
9
1
2
R/W
ACK
Wait
Data
State
ACKNOWLEDGE
not acknowledge
acknowledge
9
1
2
8
Clock Pulse for
Acknowledgment
acknowledgment
signal from receiver
3 8
9
P
Stop
ACK
Condition
1997 Microchip Technology Inc.
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