DS21455 Maxim Integrated Products, DS21455 Datasheet - Page 232

• Manufacturer Part Number: DS21455
• Description: Network Controller & Processor ICs Quad E1-T1-J1 Single -Chip Transceiver (S
• Manufacturer: Maxim Integrated Products

Specifications of DS21455

• Product: Framer
• Number Of Transceivers: 4
• Data Rate: 64 Kbps
• Supply Voltage (max): 3.465 V
• Supply Voltage (min): 3.135 V
• Supply Current (max): 328 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Package / Case: BGA

DS21455/DS21458 Quad T1/E1/J1 Transceivers
Figure 36-5. Receive Side 2.048MHz Boundary Timing (With Elastic Store
Enabled)
RSYSCLK
CHANNEL 31
CHANNEL 32
CHANNEL 1
1
RSER
LSB
LSB MSB
2
RSYNC
RMSYNC
3
RSYNC
CHANNEL 1
CHANNEL 31
CHANNEL 32
C/A D/B
C/A D/B
A
B
A
B
RSIG
RCHCLK
4
RCHBLK
NOTES:
1) RSER data in channels 1, 5, 9, 13, 17, 21, 25, and 29 are forced to one.
2) RSYNC is in the output mode (IOCR1.4 = 0).
3) RSYNC is in the input mode (IOCR1.4 = 1).
4) RCHBLK is forced to one in the same channels as RSER (Note 1).
5) The F-bit position is passed through the receive-side elastic store.
232 of 270