SAB80C166W Datasheet, PDF (63/67 Pages) Siemens Semiconductor Group – C16x-Family of High-Performance CMOS 16-Bit Microcontrollers

SAB 80C166W/83C166W
AC Characteristics (cont’d)
CLKOUT and READY
V_CC = 5 V ± 10 %; V_SS = 0 V
T_A = 0 to + 70 ˚C for SAB 83C166W-5M, SAB 80C166W/83C166W-M
T_A = – 40 to + 85 ˚C for SAB 83C166W-5M-T3, SAB 80C166W/83C166W-M-T3
T_A = – 40 to + 110 ˚C for SAB 83C166W-5M-T4, SAB 80C166W/83C166W-M-T4
C_L (for Port 0, Port 1, Port 4, ALE, RD, WR, BHE, CLKOUT) = 100 pF
Parameter
CLKOUT cycle time
CLKOUT high time
CLKOUT low time
CLKOUT rise time
CLKOUT fall time
CLKOUT rising edge to
ALE falling edge
Synchronous READY
setup time to CLKOUT
Synchronous READY
hold time after CLKOUT
Asynchronous READY
low time
Asynchronous READY
setup time ¹⁾
Asynchronous READY
hold time ¹⁾
Async. READY hold time
after RD, WR high
(Demultiplexed Bus) ²⁾
Symbol CPU Clock = 16 MHz Variable CPU Clock
Duty cycle 0.4 to 0.6
1/T_CLP = 1 to 20 MHz
min.
max.
min.
max.
t₂₉ CC 62.5
t₃₀ CC ₁₅
t₃₁ CC ₁₅
t₃₂ CC –
t₃₃ CC –
t₃₄ CC 0 + t_A
62.5
–
–
5
5
10 + t_A
T_CLP
T_CLmin – 10
T_CLmin – 10
–
–
0 + t_A
T_CLP
–
–
5
5
10 + t_A
t₃₅ SR 10
–
10
–
t₃₆ SR 10
–
10
–
t₃₇ SR 77.5
–
T_CLP + 15
–
t₅₈ SR ₂₀
–
20
–
t₅₉ SR ₀
–
0
–
t₆₀ SR ₀
0
0
+ 2t_A + t_F
2)
T_CL - 25
+ 2t_A + t_F
2)
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes
1) _{These timings are given for test purposes only, in order to assure recognition at a specific clock edge.}
2) _{Demultiplexed bus is the worst case. For multiplexed bus 2TCL are to be added to the maximum values. This}
adds even more time for deactivating READY.
Semiconductor Group
63