TDA8034AT/C1,118 NXP Semiconductors, TDA8034AT/C1,118 Datasheet - Page 8

• Manufacturer Part Number: TDA8034AT/C1,118
• Description: IC SMART CARD INTERFACE 16SOIC
• Manufacturer: NXP Semiconductors
• Type: Smart Card Interfacer

Specifications of TDA8034AT/C1,118

• Package / Case: 16-SOIC (3.9mm Width)
• Controller Type: Smart Card Interface
• Interface: Analog
• Voltage - Supply: 3V, 5V
• Current - Supply: 65mA
• Operating Temperature: -25°C ~ 85°C
• Mounting Type: Surface Mount
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 935289276118

NXP Semiconductors
TDA8034T_TDA8034AT
Product data sheet
8.5 Shutdown mode
8.6 Activation sequence
After a power-on reset, if pin CMDVCCN is HIGH, the circuit enters the Shutdown mode,
ensuring only the minimum number of circuits are active while the TDA8034T/TDA8034AT
waits for the microcontroller to start a session.
The following device activation sequence is applied when using an external clock; see
Figure
Calculation of the time delays is as follows:
Remark: The value of period T is 64 times the period interval of the internal oscillator at
high frequency (
1. Pin CMDVCCN is pulled LOW (t0).
2. The internal oscillator is triggered (t0).
3. The internal oscillator changes to high frequency (t1).
4. V
5. Pin I/O is driven HIGH (t3).
6. The clock on pin CLK is applied to the C3 contact (t4).
7. Pin RST is enabled (t5).
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all card contacts are inactive. The impedance between the contacts and GND is
approximately 200 Ω.
pin I/OUC is high-impedance using the 11 kΩ pull-up resistor connected to V
the voltage generators are stopped
the voltage supervisor is active
the internal oscillator runs at its lowest frequency (f
t1 = t0 + 384 ×
t2 = t1
t3 = t1 + 17T / 2
t4 = driven by host controller; > t3 and < t5
t5 = t1 + 23T / 2
CC
6:
rises from either 0 V to 3 V or 0 V to 5 V on a controlled slope (t2).
All information provided in this document is subject to legal disclaimers.
1
∨
fosc(int)high
1
∨
Rev. 3.0. — 17 January 2011
fosc(int)low
); t3 is called t
TDA8034T; TDA8034AT
d(start)
and t5 is called t
osc(int)low
)
d(end)
Smart card interface
.
© NXP B.V. 2011. All rights reserved.
DD(INTF)
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