RB5C396 Ricoh Corporation, RB5C396 Datasheet - Page 86

• Manufacturer Part Number: RB5C396
• Description: PC Card Controller Compliant With Pcmcia 2.1/jeida 4.2
• Manufacturer: Ricoh Corporation

82
6. DMA Read Cycle Timing
RF5C296/RF5C396L/RB5C396/RF5C396
*
*
Symbol
1) This Timing assumes a load capacitance of 50pF.
2) In the above table, the parenthesized specifications apply when V
T41
T42
T33
T38
T74
T91
T92
T93
V
CC
=5V±10% or 3.3±0.3V.
(DACK# to card)
IOCHRDY
CE1#,CE2#
IRQ11 or IRQ15
IRQ9
(DACK#)
SD(15,0)
IOW#
CIORD#,OE#
REG#
(TC from system)
(TC to card)
CD(15,0)
CIOWR#
WAIT#
WE#
IOCHRDY inactive from WAIT# active
IOCHRDY active to WAIT# inactive
CIOWE# active from IOW#
IOW# inactive to rising edge of CIOWR#, TC (WE#)
SD <15 : 0> valid to CD <15 : 0> valid
DACK# (IRQ9) active to DMA cycle begin
system TC (IRQ11 or IRQ15) to card TC (WE#)
rising edge of DACK# (IRQ9) to CE#, REG#
(high)
T91
T33
Item
T41
CC
=3.3±0.3V. Accordingly, the non-parenthesized specifications alone apply whether
T92
T74
DATA VALID
T42
DATA VALID
V
CC
=5V±10%(3.3V±0.3V)*
T38
T74
MIN.
0
0
T93
2
, Ta=0 to 70˚C, CL=100pF
Limits
20(30)*
20(30)*
40 (50)
40 (50)
40 (50)
MAX.
25
24
50
1
1
Unit
ns
ns
ns
ns
ns
ns
ns
ns