Datasheet

ENC424J600/624J600
DS39935C-page 8  2010 Microchip Technology Inc.
OSC1 3 3 I ANA 25 MHz Crystal Oscillator/Clock Input
OSC2 2 2 O — 25 MHz Crystal Oscillator Output
PSPCFG0 32 — I CMOS PSP Mode Select 0
PSPCFG1 — 45 I CMOS PSP Mode Select 1
PSPCFG2 — 17 I CMOS PSP Mode Select 2
PSPCFG3 — 18 I CMOS PSP Mode Select 3
PSPCFG4 — 52 I CMOS PSP Mode Select 4
RBIAS 11 16 I ANA PHY Bias (external resistor) Connection
RD 36 51 I CMOS PSP Read Strobe
RW
36 51 I CMOS PSP Combined Read/Write Signal
SCK 37 52 I CMOS SPI Serial Clock Input
SI 36 51 I CMOS SPI Serial Data Input (from Master)
SO 35 50 O — SPI Serial Data Out (to Master)
SPISEL 24 34 I CMOS SPI/PSP Interface Select
TPIN- 17 27 I ANA Differential Ethernet Receive Minus Signal Input
TPIN+ 16 26 I ANA Differential Ethernet Receive Plus Signal Input
TPOUT- 21 31 O — Differential Ethernet Transmit Minus Signal Output
TPOUT+ 20 30 O — Differential Ethernet Transmit Plus Signal Output
V
CAP 43 63 P — Regulator External Capacitor connection
V
DD 44 21, 47,
64
P — Positive 3.3V Power Supply for Digital Logic
V
DDOSC 4 4 P — Positive 3.3V Power Supply for 25 MHz Oscillator
V
DDPLL 12 22 P — Positive 3.3V Power Supply for PHY PLL Circuitry
VDDRX 15 25 P — Positive 3.3V Power Supply for PHY RX Circuitry
VDDTX 18 28 P — Positive 3.3V Power Supply for PHY TX Circuitry
V
SS 33, 42 46, 62 P — Ground Reference for Digital Logic
VSSOSC 1 1 P — Ground Reference for 25 MHz Oscillator
VSSPLL 13 23 P — Ground Reference for PHY PLL Circuitry
V
SSRX 14 24 P — Ground Reference for PHY RX Circuitry
VSSTX 19, 22 29, 32 P — Ground Reference for PHY TX Circuitry
WR 35 50 I CMOS PSP Write Strobe
WRH — 48 I CMOS PSP Write High Strobe
WRL — 50 I CMOS PSP Write Low Strobe
TABLE 1-2: ENC424J600/624J600 PINOUT DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin Type
Input
Buffer
Description
44-Pin 64-Pin
Legend: I = Input; O = Output; P = Power; CMOS = CMOS compatible input buffer; ANA = Analog level input/output