ncn6804 ON Semiconductor, ncn6804 Datasheet - Page 8

• Manufacturer Part Number: ncn6804
• Description: Dual Smart Card Interface Ic With Spi Programming Interface
• Manufacturer: ON Semiconductor

NOTE:
7. Since a 18 kW (Typical) pullup resistor is provided by the NCN6804, the external MPU can use an Open Drain connection. On the other hand
DIGITAL INPUT/OUTPUT SECTION CLK_IN, I/O, CLK_SPI, MOSI, MISO, CS, INT, EN_RPU
25,26,2
7,28,30
25,26,2
7,28,30
24, 29
24, 29
Pin
26
26
28
28
30
29
27
25
24
28
25
NMOS smart cards can be used straightforward.
Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit
board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared
operating temperature range. Functional operation of the device exceeding these conditions are not implied. Device specification
limit values are applied individually under normal operating conditions and not valid simultaneously.
F
tr
Symbol
F
tr
td
R
CLK_SPI
spi
tr
tr
tf
tf
str
CLK_IN
R
V
t
V
clk_spi
pu_I/O
t
mosi
miso
V
V
F
mosi
miso
RIO
FIO
F
, tf
, tf
INT
OH
OL
IH
IL
tr
tf
str
spi
,
,
Input Asynchronous Clock Duty Cycle = 50%
Input Clock Rise time
Input Clock Fall time
Input SPI clock
Input CLK_SPI Rise/Falltime
Input MOSI Rise/Falltime
Output MISO Rise/Falltime @ C
Input CS Rise/Falltime
I/O Data Transfer Switching Time, both directions (I/O & CRD_IOA/B)
@ Cs = 30 pF
INT Pull Up Resistor
Positive going Input High Level Voltage Threshold (CLK_IN, MOSI,
CLK_SPI, CS, EN_RPU)
Negative going Input Low Level Voltage (CLK_IN, MOSI, CLK_SPI,
CS, EN RPU)
Output High Voltage
INT, MISO @ I
Output Low Voltage
INT, MISO @ I
Delay Between 2 Consecutive CLK_SPI Burst Sequence
I/0 Pullup Resistor
@ V
@ V
I/O Rise time (see Note 7)
I/O Fall time
DD
DD
OH
OL
= 200 mA (sink)
= 3.0 V
= 5.0 V
= -10 mA (source)
Rating
S
= 30 pF
http://onsemi.com
NCN6804
8
0.70 * V
V
DD
Min
20
33
12
2
2
0
– 1.0
DD
(-40 °C to +85°C)
Typ
45
18
0.3 *V
Max
0.40
V
0.8
0.8
30
40
15
12
12
12
12
80
24
DD
DD
Unit
MHz
MHz
kW
kW
ns
ns
ns
ns
ns
ms
ns
V
V
V
V