ST8004CD View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
ST8004CD Datasheet PDF : 19 Pages
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ST8004
OFF OUTPUTS (PIN OFF IS AN OPEN DRAIN WITH AN INTERNAL 20 kΩ PULL-UP RESISTOR TO
VDD); (see note 5) (VDD = 3.3V, VDDP = 5V, fXTAL = 10MHz, unless otherwise noted. Typical values are to
Ta = 25°C)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max. Unit
VOL
Low Level Output Voltage IOL = 2 mA
VOH
High Level Output Voltage IOH = -15 µA
0.75 VDD
0.4
V
V
PROTECTION (VDD = 3.3V, VDDP = 5V, fXTAL = 10MHz, unless otherwise noted. Typical values are to
Ta = 25°C)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max. Unit
TSD Shut down temperature
ICC(SD) Shut down current at VCC
135
°C
150
mA
TIMING (VDD = 3.3V, VDDP = 5V, fXTAL = 10MHz, unless otherwise noted. Typical values are to Ta = 25°C)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max. Unit
tACT Activation sequence duration (See Fig. 3)
tDE Deactivation sequence
duration
(See Fig. 4)
t3
Start of the windows to send (See Fig. 3)
CLK to card
t5
End of the windows to send (See Fig. 3)
CLK to card
180
220
µs
60
80
100
µs
130
µs
140
µs
Note 1: To meet these specifications VCC should be decoupled to CGND using two ceramic multiplier capacitors of low ESR with values of
100nF.
Note 2: The transition time and duty cycle factor are shown in figure 7; d = t1/(t1+t2).
Note 3: PRES and CMDVCC are active Low; RSTIN and PRES are active High
Note 4: Referred to the paragraph "CLOCK CIRCUITRY"
Note 5: See paragraph "FAULT DETECTION".
Figure 1 : Alarm as a function of VDD (tW = 10 ms), VTHSEL = VDD or floating
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