LTC4332

3

Rev. A

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ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VTH

Differential Input Signal Threshold

–25V < VCM < 25V (Note 2)

l

±200

mV

Logic

VIH

High Level Input Voltage (ON, SCK, MISO, MOSI,

SS1, SS2, SS3, SSC, INT, REMOTE)

1.62V ≤ VL ≤ 5.5V

l

0.8 • VL

V

VIH3ST

High Level Input Voltage (SPEED1, SPEED2)

l

VL – 0.25

V

VIM3ST

Mid Level Input Voltage (SPEED1, SPEED2)

l

0.45 • VL

0.55 • VL

V

VIL3ST

Low Level Input Voltage (SPEED1, SPEED2)

l

0.25

V

VIL

Low Level Input Voltage (ON, SCK, MISO, MOSI,

SS1, SS2, SS3, SSC, INT, REMOTE)

1.62V ≤ VL ≤ 5.5V

l

0.2 • VL

V

Digital Input Current (ON, REMOTE, SPEED1,

SPEED2)

VIN = 0V to VL

l

±60

µA

Digital Input Current (SCK, MOSI, SS1, SS2,

SS3, SSC)

VIN = 0V to VL, REMOTE = 0

l

±60

µA

Digital Input Current (MISO)

VIN = 0V to VL, REMOTE = 1

l

±60

µA

Digital Input Current (INT)

VIN = 0V to VL, REMOTE = 1

l

±5

µA

CIN

Digital Input Capacitance

(Note 2)

10

pF

VOH

High Level Output Voltage

IO = –500µA, 1.62V ≤ VL ≤ 5.5V

l

VL – 0.2

V

VOL

Low Level Output Voltage

IO = 500µA, 1.62V ≤ VL ≤ 5.5V

l

0.2

V

IOZ

High-Z Output Leakage Current (LINK, INT)

l

±5

µA

High-Z Output Leakage Current (MOSI)

REMOTE = 1

l

±60

µA

High-Z Output Leakage Current (MISO)

REMOTE = 0

l

±60

µA

Output Source Current (Short-Circuit)

±80

mA

The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VCC = 5V, VL = 3.3V, GND = 0V unless otherwise noted. (Note 6)

SWITCHING CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

General

tON_LOW

Pulse Width of ON low for Valid Reset Condition

(Figure 6)

l

1

µs

tREADY

ON Rise to Control Interface (SSC) Ready

l

15

µs

tSSF_PROP

Local Slave Select Fall to Remote Slave Select Fall

Propagation Delay

(Note 3)(Figure 9)

0.4 • SF

1 • SF

13 • SF

µs

tSCKR_PROP

Local SCK Rise to Remote SCK Fall and MOSI Update

Propagation Delay

Local SCK Rise to Remote SCK Rise and MOSI Update

Propagation Delay

Local SCK Rise to MOSI Update Propagation Delay

(CPOL, CPHA) = (1,1)

(CPOL, CPHA) = (0,1)

(CPOL, CPHA) = (0,0) or (1,0)

0.7 • SF

0.7 • SF

0.7 • SF

µs

µs

µs

tSSR_PROP

Local Slave Select Rise to Remote SCK Fall

Propagation Delay

Local Slave Select Rise to Remote SCK Rise

Propagation Delay

(CPOL, CPHA) = (0,0)

(CPOL, CPHA) = (1,0)

0.7 • SF

0.7 • SF

µs

µs

tINT_PROP

Remote INT to Local INT Propagation Delay

(Note 3)

0.4 • SF

1 • SF

13 • SF

µs

tREMOTE_RESET

Delay from Local ON Low for Valid Remote Reset

Condition

l

180

ms

tR, tF

Logic Output Rise/Fall (SCK, MISO, MOSI)

CL = 20pF

l

8

ns

The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VCC = 5V, VL = 3.3V, GND = 0V unless otherwise noted.