LS7222 datasheet(3/4 Pages) LSI

3 / 4 page

Quiescent supply current: (100pF capacitor to Vss and 1.5M

Ω resistor to VDD, connected to the RC-OSC input)

SYMBOL

VDD

MAX

UNIT

IDD

µA

IDD

µA

IDD

12V

µA

MAXIMUM RATINGS: (Voltages references to VSS)

RATING

SYMBOL

VALUE

UNIT

DC supply voltage

VDD

+4 to +18

Operating temperature range

-25 to +70

°C

Storage temperature

TSTG

-65 to +150

°C

DC Electrical Characteristics:

(Vss = 0V, VDD = +4V to +15V, = 25°C

≤ TA ≤ +70°C unless otherwise specified)

PARAMETER

CONDITIONS

VDD

MIN

TYP

MAX

UNIT

Output source current

Logic 1 Output

1.50

2.50

Lock Display, Arm, Disarm

VOUT

≥ VDD - 2V

12V

5.60

8.25

Alarm, Lock

15V

7.25

10.7

Program Mode Outputs

Output Sink Current

Logic 0 Output

.400

.60

Lock Display, Arm, Disarm

VOUT

≤ Vss + 0.4V

12V

1.20

1.70

Alarm, Lock

15V

1.50

2.25

Program Mode Outputs

Output Source Current

Logic 1 Output

.25

.400

Tamper Output

VOUT

≥ VDD - 2V

12V

.90

1.30

15V

1.10

1.70

Output Sink Current

Logic 0 Output

.060

.100

Tamper Output

VOUT

≤ Vss + 0.4V

12V

.200

.290

15V

.250

.370

Input Level Detection

VIH = Logic 1

3.5

VDD

All Inputs

12V

8.0

VDD

15V

10.0

VDD

VIL = Logic 0

Vss

1.6

12V

Vss

4.0

15V

Vss

5.0

KEYPAD ENTRY TIME vs. CAPACITOR ON CAP-K INPUT

ENTRY TIME IN SECONDS

5.0

4.0

3.0

2.0

1.0

VDD

= 12V

FIGURE 3.

LS7222 PULSE WIDTH ON ARM, DISARM AND

TAMPER OUTPUTS vs. CAPACITOR ON CAP-M INPUT

FIGURE 4.

PULSE WIDTH TIME IN SECONDS

-6

-5

-4

-3

-2

10-1

-9

-8

-7

-6

-5

10-10

7222-12201-3

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