CS8900A-CQ3R Cirrus Logic Inc, CS8900A-CQ3R Datasheet - Page 126

• Manufacturer Part Number: CS8900A-CQ3R
• Description: Ethernet ICs IC 10Mbps Ethernet Controller 3.3V
• Manufacturer: Cirrus Logic Inc

Specifications of CS8900A-CQ3R

• Ethernet Connection Type: 10Base- 2, 10Base- 5, 10Base- F, 10Base- T
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Product: Ethernet Controllers
• Standard Supported: IEEE 802.3
• Data Rate: 10 Mbps
• Maximum Operating Temperature: + 70 C
• Package / Case: LQFP-100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SWITCHING CHARACTERISTICS
16-Bit Memory Read, IOCHRDY Not Used
SA [19:0], SBHE, CHIPSEL, active to MEMCS16 low
Address, SBHE, CHIPSEL active to MEMR active
MEMR low to SD valid
Address, SBHE, CHIPSEL hold after MEMR inactive
MEMR inactive to SD 3-state
MEMR inactive to active
16-Bit Memory Read, With IOCHRDY
MEMR low to IOCHRDY inactive
IOCHRDY low pulse width
IOCHRDY active to SD valid
126
SA [19:0],
SBHE,
CHIPSEL
SA [19:0],
SBHE,
CHIPSEL
IOCHRDY
MEMCS16
MEMR
SD [15:0]
MEMCS16
MEMR
SD [15:0]
Parameter
Figure 51. 16-Bit Memory Read, IOCHRDY not used
Figure 52. 16-Bit Memory Read, with IOCHRDY
t
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MEMR1
t
MEMR2
t
MEMR8
Valid Address
Valid Address
t
MEMR7
t
MEMR3
(Continued)
t
MEMR9
Valid Data
t
MEMR4
Valid Data
Symbol
t
t
t
t
t
t
t
t
t
MEMR1
MEMR2
MEMR3
MEMR4
MEMR5
MEMR6
MEMR7
MEMR8
MEMR9
t
MEMR6
t
MEMR5
Crystal LAN™ Ethernet Controller
Min
125
10
35
0
-
-
-
-
-
IN or OUT of chip
IN or OUT of chip
DIRECTION:
DIRECTION:
IN
OUT
IN
OUT
OUT
IN
OUT
IN
OUT
Typ
30
35
-
-
-
-
-
-
-
Max
135
175
30
0
-
-
-
-
-
CS8900A
DS271F5
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns