Datasheet

 2001 Microchip Technology Inc. DS30292C-page 167
PIC16F87X
FIGURE 15-12: PARALLEL SLAVE PORT TIMING (PIC16F874/877 ONLY)
TABLE 15-6: PARALLEL SLAVE PORT REQUIREMENTS (PIC16F874/877 ONLY)
Note: Refer to Figure 15-5 for load conditions.
RE2/CS
RE0/RD
RE1/WR
RD7:RD0
62
63
64
65
Parameter
No.
Symbol Characteristic Min Typ† Max Units Conditions
62 TdtV2wrH Data in valid before WR
↑ or CS↑ (setup time) 20
25
—
—
—
—
ns
ns Extended
Range Only
63* TwrH2dtI WR
↑ or CS↑ to data–in invalid (hold time) Standard(F)20——ns
Extended(LF)35——ns
64 TrdL2dtV RD
↓ and CS↓ to data–out valid —
—
—
—
80
90
ns
ns Extended
Range Only
65 TrdH2dtI RD
↑ or CS↓ to data–out invalid 10 — 30 ns
* These parameters are characterized but not tested.
† Data in "Typ" column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance only and are
not tested.