DS21FT42 Maxim Integrated Products, DS21FT42 Datasheet - Page 83

• Manufacturer Part Number: DS21FT42
• Description: IC FRAMER T1 4X3 12CH 300-BGA
• Manufacturer: Maxim Integrated Products

Specifications of DS21FT42

• Controller Type: T1 Framer
• Interface: Parallel/Serial
• Voltage - Supply: 2.97 V ~ 3.63 V
• Current - Supply: 225mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 300-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

4.096 MHZ INTERLEAVED BUS EXTERNAL PIN CONNECTION EXAMPLE
Figure 21-1
8.192 MHZ INTERLEAVED BUS EXTERNAL PIN CONNECTION EXAMPLE
Figure 21-2
22.
23.1 DESCRIPTION
The DS21Q42 IEEE 1149.1 design supports the standard instruction codes SAMPLE/PRELOAD,
BYPASS, and EXTEST. Optional public instructions included with this design are HIGHZ, CLAMP,
and IDCODE. See Figure 23-1 for a block diagram. The DS21Q42 contains the following items, which
meet the requirements, set by the IEEE 1149.1 Standard Test Access Port and Boundary Scan
Architecture. The DS21FT42 should be considered as 3 individual DS21Q42 devices. The DS21FF42
should be considered as 4 individual DS21Q42 devices.
Test Access Port (TAP)
TAP Controller
Instruction Register
Bypass Register
Boundary Scan Register
Device Identification Register
FRAMER 0
FRAMER 0
TSYSCLK0
RSYSCLK0
TSYSCLK0
RSYSCLK0
TSSYNC0
TSSYNC0
RSYNC0
RSER0
RSYNC0
TSER0
RSIG0
TSIG0
RSER0
TSER0
RSIG0
JTAG-BOUNDARY SCAN ARCHITECTURE AND TEST ACCESS PORT
TSIG0
Bus 1
FRAMER 1
RSYSCLK1
TSYSCLK1
FRAMER 1
TSSYNC1
RSYNC1
RSER1
RSYSCLK1
TSER1
TSYSCLK1
RSIG1
TSIG1
TSSYNC1
RSYNC1
RSER1
TSER1
RSIG1
TSIG1
SYSCLK
SYNC INPUT
RSER
TSER
RSIG
TSIG
FRAMER 2
RSYSCLK2
TSYSCLK2
TSSYNC2
RSYNC2
FRAMER 2
RSER2
TSER2
RSIG2
TSIG2
RSYSCLK2
TSYSCLK2
TSSYNC2
RSYNC2
RSER2
TSER2
RSIG2
TSIG2
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FRAMER 3
Bus 2
RSYSCLK3
TSYSCLK3
FRAMER 3
TSSYNC3
RSYNC3
RSER3
RSYSCLK3
TSYSCLK3
TSER3
RSIG3
TSIG3
TSSYNC3
RSYNC3
RSER3
TSER3
RSIG3
TSIG3
SYSCLK
SYNC INPUT
RSER
TSER
RSIG
TSIG
SYSCLK
SYNC INPUT
RSER
TSER
RSIG
TSIG