w65c22 Western Design Center, Inc., w65c22 Datasheet - Page 5

• Manufacturer Part Number: w65c22
• Description: W65c22n And W65c22s Versatile Interface Adapter Via Datasheet
• Manufacturer: Western Design Center, Inc.

FIGURE 1-1 W65C22 INTERNAL ARCHITECTURE BLOCK DIAGRAM ................................................... 7
FIGURE 2-1 READ HANDSHAKE OPERATION (PA ONLY) ................................................................... 11
FIGURE 2-2 WRITE HANDSHAKE (PA AND PB) ..................................................................................... 12
FIGURE 3-1 W65C22 40 PIN PDIP PINOUT ............................................................................................ 28
FIGURE 3-2 W65C22 44 PIN PLCC PINOUT ........................................................................................... 28
FIGURE 3-3 W65C22N AND GTE - G65SC22 CMOS PORT A BUFFER (PA0-PA7, CA2) .................... 31
FIGURE 4-1 READ TIMING ....................................................................................................................... 44
FIGURE 4-2 WRITE TIMING ...................................................................................................................... 44
FIGURE 4-3 READ HANDSHAKE, PULSE MODE (CA2) .......................................................................... 45
FIGURE 4-4 READ HANDSHAKE, HANDSHAKE MODE TIMING (CA2) ................................................ 45
FIGURE 4-5 WRITE HANDSHAKE, PULSE MODE TIMING (CA2, CB2) ................................................ 45
FIGURE 4-6 WRITE HANDSHAKE, HANDSHAKE MODE TIMING (CA2, CB2) ...................................... 46
FIGURE 4-7 PERIPHERAL DATA, INPUT LATCHING TIMING ................................................................. 46
FIGURE 4-8 DATA SHIFT OUT, INTERNAL OR EXTERNAL SHIFT CLOCK TIMING ............................ 46
FIGURE 4-9 DATA SHIFT IN, INTERNAL OR EXTERNAL SHIFT CLOCK TIMING ................................ 47
FIGURE 4-10 EXTERNAL SHIFT CLOCK TIMING ................................................................................... 47
FIGURE 4-11 PULSE COUNT INPUT TIMING ......................................................................................... 47
FIGURE 4-12 TEST LOAD (ALL DYNAMIC PARAMETERS) ................................................................... 47
FIGURE 5-1 HIGH RESISTANCE BUS HOLDING DEVICE ON THE W65C22S ..................................... 48
Table of Figures
5