PEF 20550 H V2.1 Infineon Technologies, PEF 20550 H V2.1 Datasheet - Page 56

• Manufacturer Part Number: PEF 20550 H V2.1
• Description: IC INTERFACE CTRLR PCM MQFP80
• Manufacturer: Infineon Technologies
• Series: ELIC®r

Specifications of PEF 20550 H V2.1

• Function: Line Card Controller
• Interface: ISDN, PCM
• Number Of Circuits: 1
• Voltage - Supply: 5V
• Current - Supply: 15mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 80-SQFP
• Includes: Change Detection, Power-Up Reset Generation
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Other names: PEF20550HV2.1XT; PEF20550HV21XP; SP000007794; SP000007795

Figure 28
Timing Diagram for DMA-Transfer (fast) Receive (n = k
Figure 29
Timing Diagram for DMA-Transfers (slow) Receive (n = k
Figure 30
Timing Diagram for DMA-Transfers (slow or fast) Receive (n = 4, 8 or 16)
Generally it is the responsibility of the DMA-controller to perform the correct bus cycles
as long as a request line is active.
Semiconductor Group
DRQR
RD
CSS,
DACK
Cycle
DRQR
RD
CSS,
DACK
Cycle
DRQR
RD
CSS,
DACK
Cycle
n-2
n-2
n-1
n-2
n-1
56
n-1
n
n
32)
ITD05827
n
Functional Description
32)
ITD05828
ITD05829
PEB 20550
PEF 20550
01.96