lc7940kd Sanyo Semiconductor Corporation, lc7940kd Datasheet - Page 7

• Manufacturer Part Number: lc7940kd
• Description: Stn Dot Matrix Lcd Segment Driver
• Manufacturer: Sanyo Semiconductor Corporation

CP
SDI
DI1 to 3
LOAD
CDO
Electrical Characteristics at Ta = 25±2°C, V DD = 2.7 to 5.5V
Note *4 V DE = one of V1, V3, V4 or V EE . V1 = V DD , V3 = 9/11(V DD -V EE ), V4 = 2/11(V DD -V EE )
Switching Characteristics at Ta = 25±2°C, V SS = 0V, V DD = 2.7 to 5.5V
Switching Characteristics Diagram
Input high level current
Input low level current
Output high level voltage
Output low level voltage
Driver on resistance
Standby current drain
Operating current drain
Output delay time
*5 I SS is the current flowing from V DD -V SS .
*6 I EE is the current flowing from V DD -V EE
Parameter
Parameter
t R
0.8V DD
0.2V DD
t CL(1)
t WC
t SETUP
Symbol
Symbol
I SS *5
I EE *6
V OH
R ON
V OL
0.8V DD
I ST
I IH
0.2V DD
I IL
t D
t RL
t F
V IN = V DD : LOAD, CP, CDI, P/S, DI1 to DI3, SDI, M,
and DISPOFF
V IN = V SS : LOAD, CP, CDI, P/S, DI1 to DI3, SDI, M,
and DISPOFF
I OH = -400µA: CDO
I OL = 400µA: CDO
V DD -V EE = 18V, |V DE -V o | = 0.25V *4
CDI = V DD , V DD -V EE = 18V,
CP = 3.3MHz, Output unloaded: V SS
V DD -V EE = 18V, CP = 3.3MHz, LOAD = 5.156kHz
M = 52Hz: V SS
V DD -V EE = 18V, CP = 3.3MHz, LOAD = 5.156kHz
M = 52Hz: V EE
CL=30pF: CDO
LC7940KD / LC7941KDR
t HOLD
t WC
t D
t CL(2)
t WL
Conditions
Conditions
0.8V DD
t FL
t LC
V DD -0.4
min
min
-
-
-
-
-
-
-
-1
0.8V DD
0.2V DD
Ratings
Ratings
typ
typ
-
-
-
-
-
-
-
-
t D
0.7
max
max
-
-
200
200
0.4
1.0
0.1
0.2V DD
No.A0573-7/13
1
2
Unit
Unit
mA
mA
kΩ
µA
µA
µA
ns
V
V