COM20022I-HT SMSC, COM20022I-HT Datasheet - Page 75

• Manufacturer Part Number: COM20022I-HT
• Description: IC CTRLR ARCNET 2KX8 RAM 48-TQFP
• Manufacturer: SMSC
• Series: ARCNETr

Specifications of COM20022I-HT

• Controller Type: ARCNET Controller
• Interface: Differential
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 65mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-TQFP, 48-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1003

10 Mbps ARCNET (ANSI 878.1) Controller with 2Kx8 On-Chip RAM
Datasheet
SMSC COM20022I
nREFEX
nDACK
DREQ
Note*: t7 is measured from the latest active timing among TC, Write/Read.
(D15-D0)
nCS
nDS
DATA
DIR
TC
Write LOW-POINTER
when DMAEN=1
Figure 8.18
t3
t2
t10
t21
- DMA Timing (Motorola Mode 68XX)
t19
DATASHEET
t22
t24
t6
t8
VALID
Page 75
t12
t11
t26
t16
VALID
t9
t23
t20
t25
t4
t5
t14
t1
t15
t3
t19
VALID
t22
t24
t7*
t17
t13
VALID
t20
t25
t18
t23
Revision 09-27-07