OXCF950_06 Datasheet, PDF (60/66 Pages) Oxford Semiconductor – low cost asynchronous 16-bit PC card or Compact Flash UART device

OXFORD SEMICONDUCTOR, INC.
OXCF950 rev B DATA SHEET
Symbol
tsu(A)
tsu(CE)
ta(OE)
tdis(OE)
th(D)
th(A)
th(CE)
Read Access
Min (ns)
1
1
0
0
Max (ns)
35
15
Write Access
Min (ns)
1
1
4
0
0
Table 51: Memory Access Timing Specification
Max (ns)
15
10.2 I/O Access
A[3:0]
REG#
CE1#
IORD#
D[7:0]
t_su A (IORD)
t_su REG (IORD)
t_su CE (IORD)
t_d(IORD)
VALID DATA
t_h(IORD)
OE#, WE#, IOWR#, RESET# = 1
Figure 10: I/O read timing
A[3:0]
REG#
CE1#
t_su A (IOWR)
t_su REG (IOWR)
t_su CE (IOWR)
IOWR#
D[7:0]
t_su(IOWR)
OE#, WE#, IORD#, RESET# = 1
Figure 11: I/O write timing
DS-0027 Feb 06
External—Free Release
t_h(IOWR)
Page 60 of 66