UPD98405 Datasheet, PDF (22/64 Pages) NEC – 155M ATM INTEGRATED SAR CONTROLLER

µPD98405
1.7 Power and Ground
Pin Name
Pin No.
I/O
VDD5
8, 20, 32, 44, 56, 67, 81, 93,
–
105, 287, 299
VDD3
AVDD3
2, 14, 26, 38, 50, 62, 72, 78,
–
87, 99, 111, 125, 138, 151,
154, 175, 190, 208, 227,
245, 254, 293
269
–
HVDD3
275, 276
–
RVDD3
280
–
GND
1, 7, 13, 19, 25, 31, 37, 43,
–
49, 55, 61, 68, 76, 77, 86,
92, 98, 104, 110, 117, 124,
131, 137, 145, 152, 153,
160, 167, 174, 182, 189,
199, 214, 228, 229, 243,
252, 259, 292, 298, 304
AGND
270
–
HGND
272, 279
–
RGND
286
–
Function
+5-V power (digital block).
Supply +5 V to these pins when using the bus interface 5-V
mode. In the 3.3-V mode, supply +3.3 V.
+3.3-V power (digital block).
These pins supply +3.3 V to the chip.
+3.3-V power (analog block).
Supply power with a high quality to this pin by inserting a filter
between AVDD3 and GND.
+3.3-V power (high-speed block).
Supply power with a high quality to this pin by inserting a filter
between HVDD3 and HGND.
+3.3-V power (receive PLL block).
Supply power with a high quality to this pin by inserting a filter
between RGND and this pin.
Ground (digital block).
These pins ground the chip.
Ground (analog block)
Ground (high-speed block)
Ground (receive PLL block)
22
Data Sheet S12689EJ2V0DS00