18
DC Electrical Speci cations
Electrical Characteristics over recommended operating conditions. Typical values at 25°C, V
DD
=5.0 V.
Parameter Symbol Minimum Typical Maximum Units Notes
System Current, mouse moving I
DD5
100 mA Includes XY_LED current
System Current, mouse not moving I
DD5N
100 mA Includes XY_LED current
System current, USB suspend mode,
Remote Wakeup Enabled
I
DD5S
500
A
Includes XY_LED current and
D- pullup resistor.
Supply current (Sensor only),
mouse moving
I
DDS
12 15 mA No load on B1-B5, XY-LED, ZA, ZB,
D+, D-
Supply current (Sensor only),
mouse not moving
I
DDSN
11 14 mA No load on B1-B5, XY-LED, ZA, ZB,
D+, D-
Sensor supply current, USB suspend
mode
I
DDSS
260
A
No load on B1-B5, XY-LED, ZA, ZB,
D+,D-
XY_LED current I
LED
40 49 mA Typical at Rbin 59ohm with binP
LED. Maximum DC current allowed
through XY_LED pin and LED.
XY_LED Output Low Voltage V
OL
1.1 V Refer to Figure 16
Input Low Voltage V
IL
0.5 V Pins: ZA, ZB, B1-B5,
V
IL
max of 0.5V
DC
is at V
DD
min of
4V
DC
, with a typical of 0.8V
DC
at
V
DD
of 5V
DC
Input High Voltage V
IH
0.6*V
DD
V Pins: ZA, ZB, B1-B5
Input Hysteresis V
HYST
285 mV Pins: B1-B5, OPT 0, OPT 1
Button Pull Up Current B
IOUT
125 275 500
A
Pins: B1-B5, OPT 0, OPT 1
Buttons
The minimum time between button presses is TDBB.
Buttons B1 through B5 are connected to a Schmidt trigger
input with 100 uA current sources pulling up to +3 volts
during normal, sleep and USB suspend modes.
Debounce Algorithm
Button inputs B1, B2, B3, B4, B5 are sampled every 2ms.
Three consecutive low create a button press event.
Three consecutive high create a button release event.
