MC68HC11KW1 Datasheet, PDF (212/238 Pages) Motorola, Inc – High-density complementary metal oxide semiconductor HCMOS) microcontroller unit

A.5.1 Peripheral port timing
(V_DD = 5.0Vdc ± 5%, V_SS = 0Vdc, T_A = T_L to T_H)
Characteristic ⁽¹⁾
4.0 MHz
Symbol
Unit
Min. Max.
Frequency of operation (E clock frequency)
f_OP
0 4.0 MHz
E clock period
Peripheral data set-up time, all ports ⁽²⁾
Peripheral data hold time, all ports ⁽²⁾
t_CYC 250 —
ns
t_PDSU 100 —
ns
t_PDH
50
—
ns
Delay time, peripheral data write
MCU write to port A, B, G[5:0], H, J or K
t_PWD
— 200 ns
MCU write to port C, D or F (t_PWD = t_CYC/4 + 100ns)
— 162 ns
(1) All timing is given with respect to 20% and 70% of V_DD, unless otherwise noted.
(2) Port C, and D timing is valid for active drive (CWOM, DWOM, and WOMS bits clear).
E clock
Ports
A, C, D, F, J, K
Ports
B, E, H
MCU read of port
t_PDSU
t_PDH
t_PDSU
t_PDH
Figure A-7 Port read timing diagram
A
E clock
PG[5:0]
PG[7,6]
MCU read of port
t_PDSU
t_PDH
t_PDSU
t_PDH
Figure A-8 Port G control timing
ELECTRICAL SPECIFICATIONS
MC68HC11KW1
A-8