Electronic Components Datasheet Search |
|
TK68HC24PRU Datasheet(PDF) 3 Page - List of Unclassifed Manufacturers |
|
TK68HC24PRU Datasheet(HTML) 3 Page - List of Unclassifed Manufacturers |
3 / 21 page Tekmos TK68HC24 PRU 3 www.Tekmos.com 8/21/99 processor. The PLS bit of the PIOC register controls whether this pin pulses or remains at a level. PB7 – PB0 Port B, Bits 7 to 0 - Outputs An 8 bit, general purpose output port. STRB pulses with each write to Port B in the simple strobed mode of operation. PC7 – PC0 Port C, Bits 7 to 0 - Bidirectional This is a general purpose, 8-bit bidirectional port. Each bit may be individually programmed by the DDRC register to be either an input or an output. Input data is read from the PORTCL register, while output data is written to the Port C register. The STRA pin serves as a handshake signal for this port. IRQN Interrupt Request – Open drain, active low output This pin provides the interrupt signal back to the processor. It is a logical NAND of the STAF and STAI bits in the PIOC register. AS Address Strobe - Input This pin serves to de-multiplex the address form the data on the AD bus. The falling edge of AS causes the address to be latched internally within the TK68HC24. MODE Mode Select - Input The mode select pin is sampled at the rising edge of reset. A zero puts the chip into a special emulation mode, while a one leaves it in the normal operating mode. CSN / Chip Select Input, active low This is the device chip select. The TK68HC24 is selected when 1) CSN is low, 2) the contents of the INIT register match address lines A12 – A15, and 3) when the lower order address lines (AD0 – AD7) select an internal register. The CSN signal is latched on the rising edge of the E clock. RWN Read / Write - Input Determines whether data is being read from, or is being written to the device. E Enable - Input The E (Enable) pin is the clock for the TK68HC24. The E clock runs at the external bus rate of the 6811 microprocessor. RESETN Active Low Input The RESETN pin provides a synchronous reset to the part. It must remain low for 2 E clock cycles in order to be recognized. |
Similar Part No. - TK68HC24PRU |
|
Similar Description - TK68HC24PRU |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |