Specifications

PRELIMINARY
CY14B104K/CY14B104M
Document #: 001-07103 Rev. *I Page 15 of 29
AC Test Conditions
Input Pulse Levels ....................................................0V to 3V
Input Rise and Fall Times (10% - 90%)........................ <5 ns
Input and Output Timing Reference Levels ....................1.5V
Capacitance
In the following table, the capacitance parameters are listed.
[11]
Parameter Description Test Conditions Max Unit
C
IN
Input Capacitance T
A
= 25°C, f = 1 MHz,
V
CC
= 0 to 3.0V
7pF
C
OUT
Output Capacitance 7 pF
Thermal Resistance
In the following table, the thermal resistance parameters are listed.
[11]
Parameter Description Test Conditions 44 TSOP II 54 TSOP II Unit
Θ
JA
Thermal Resistance
(Junction to Ambient)
Test conditions follow standard
test methods and procedures
for measuring thermal
impedance, in accordance with
EIA/JESD51.
31.11 30.73 °C/W
Θ
JC
Thermal Resistance
(Junction to Case)
5.56 6.08 °C/W
Figure 6. AC Test Loads
3.0V
OUTPUT
5 pF
R1
R2
789Ω
3.0V
OUTPUT
30 pF
R1
R2
789Ω
577Ω
577Ω
Table 5. RTC Characteristics
Parameters Description Test Conditions Min Max Units
I
BAK
[12]
RTC Backup Current Commercial 300 nA
Industrial 350 nA
V
RTCbat
[13]
RTC Battery Pin Voltage Commercial 1.8 3.3 V
Industrial 1.8 3.3 V
V
RTCcap
[14]
RTC Capacitor Pin Voltage Commercial 1.5 3.6 V
Industrial 1.5 3.6 V
tOCS RTC Oscillator Time to
Start
At Minimum Temperature from Power up or
Enable
Commercial 10 sec
At 25°C Temperature from Power up or Enable Commercial 5 sec
At Minimum Temperature from Power up or
Enable
Industrial 10 sec
At 25°C Temperature from Power up or Enable Industrial 5 sec
Notes
11. These parameters are guaranteed but not tested.
12. From either V
RTCcap
or V
RTCbat.
13. Typical = 3.0V during normal operation.
14. Typical = 2.4V during normal operation.
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