at83c5132 ATMEL Corporation, at83c5132 Datasheet - Page 28

• Manufacturer Part Number: at83c5132
• Description: Usb Microcontroller With 64k Bytes Flash Memory
• Manufacturer: ATMEL Corporation

MMC Interface
Definition of Symbols
Timings
Waveforms
32
AT89C5132
Table 9. MMC Interface Timing Symbol Definitions
Table 10. MMC Interface AC Timings
V
Figure 10. MMC Input Output Waveforms
T
T
T
T
T
T
T
T
T
DD
CHCH
CHCX
CLCX
CLCH
CHCL
DVCH
CHDX
CHOX
OVCH
= 2.7 to 3.3 V, T
Symbol
C
D
O
MCMD Output
MDAT Output
MCMD Input
MDAT Input
Signals
MCLK
Parameter
Clock Period
Clock High Time
Clock Low Time
Clock Rise Time
Clock Fall Time
Input Data Valid to Clock High
Input Data Hold after Clock High
Output Data Hold after Clock High
Output Data Valid to Clock High
Clock
Data In
Data Out
A
= -40 to +85°C, CL ≤ 100pF (10 cards)
T
CHIX
T
T
CHCX
CHOX
T
CHCL
T
CHCH
T
CLCX
T
Min
H
L
V
X
OVCH
50
10
10
3
3
5
5
T
CLCH
T
Conditions
IVCH
Max
High
Low
Valid
No Longer Valid
10
10
4173CS–USB–07/04
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns