XT
July 1998
7
7.20.98
)6
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,62
Table 11: DC Electrical Specifications
Unless otherwise stated, V
= 5.0V ± 10%, no load on any output, and ambient temperature range T
= 0°C to 70°C. Parameters denoted with an asterisk ( * ) represent nominal characterization
data and are not production tested to any specific limits. Where given, MIN and MAX characterization data are
±
3
σ
from typical. Negative currents indicate current flows out of the device.
PARAMETER
SYMBOL
CONDITIONS/DESCRIPTION
MIN.
TYP.
MAX.
UNITS
Overall
Supply Current, Dynamic, with Loaded
Outputs
I
DD
f
CLK
= 27MHz; C
L
≈
50pF
58
80
mA
Serial Communication Inputs (SCLK, SDATA, SLOAD)
High-Level Input Voltage
Low-Level Input Voltage
Hysteresis Voltage
V
IH
V
IL
V
hys
I
I
2.4
V
DD
+0.3
0.8
300
V
V
V
SS
-0.3
mV
μ
A
Input Leakage Current
-1
1
PCLK Select Inputs (PSEL0, PSEL1)
High-Level Input Voltage
Low-Level Input Voltage
V
IH
V
IL
I
IH
2.4
V
DD
+0.3
0.8
V
V
μ
A
μ
A
V
SS
-0.3
5
High-Level Input Current (pull-down)
V
IH
= 5V
12.7
50
Low-Level Input Current
I
IL
-1
1
Crystal Oscillator Feedback (XIN)
Threshold Bias Voltage *
V
TH
I
I
0.5V
DD
V
μ
A
Input Leakage Current
-1
1
Crystal Loading Capacitance *
C
L(xtal)
As seen by an external crystal connected
to XIN and XOUT; VCXO tuning disabled
As seen by an external clock driver on
XIN; XOUT unconnected; VCXO disabled
10
pF
Input Loading Capacitance *
C
L(XIN)
20
pF
Crystal Oscillator Drive (XOUT)
V
O
= 0V; D[13] = 0
V
O
= 0V, V(XTUNE) = 5V; D[13] = 1
V
O
= 5V; D[13] = 0
V
O
= 5V, V(XTUNE) = 5V; D[13] = 1
-45
-52
53
High-Level Output Source Current *
I
OH
mA
Low-Level Output Sink Current *
I
OL
63
mA
VCXO Tuning Input (XTUNE)
Input Leakage Current
I
I
-1
1
μ
A
Clock Outputs (ACLK, CLK27, PCLK, UCLK)
High-Level Output Source Current *
Low-Level Output Sink Current *
I
OH
I
OL
z
OH
z
OL
V
O
= 2.4V
V
O
= 0.4V
V
O
= 0.5V
DD
; output driving high
V
O
= 0.5V
DD
; output driving low
-46
64
53
57
mA
mA
Output Impedance *
Tristate Output Current
I
OZ
-10
+10
μ
A
Short Circuit Source Current *
Short Circuit Sink Current *
I
OSH
I
OSL
V
O
= 0V; shorted for 30s, max.
V
O
= 5V; shorted for 30s, max.
-60
65
mA
mA