P R E L I M I N A R Y
AMD
175
Am79C970A
DC CHARACTERISTICS over COMMERCIAL operating ranges unless otherwise
specified (continued)
Parameter
Symbol
Crystal Input Current
V
ILX
V
IHX
Parameter Description
Test Conditions
Min
Max
Units
XTAL1 Input LOW Voltage Threshold
XTAL1 Input HIGH Voltage Threshold
V
IN
= External Clock
V
IN
= External Clock
–0.5
0.8
V
V
μ
A
μ
A
μ
A
μ
A
V
DD
– 0.8
V
DD
+ 0.5
I
ILX
XTAL1 Input LOW Current
V
IN
= External Clock Active
–120
0
V
IN
= V
SS
Sleep
–10
+10
I
IHX
XTAL1 Input HIGH Current
V
IN
= External Clock Active
0
120
V
IN
= VDD Sleep
400
Power Supply Current
I
DD
Active Power Supply Current
XTAL1 = 20 MHz,
CLK = 33 MHz
90
mA
I
DDCOMA
Sleep Mode Power Supply Current
SLEEP
active
AWAKE = 0 (BCR2, bit 2)
SLEEP
active
AWAKE = 1 (BCR2, bit 2)
CLK = 0 MHz (Note 10)
200
μ
A
I
DDSNOOZE
Auto Wake Mode Power Supply Current
10
mA
I
DDMAGIC0
Magic Packet Mode
Power Supply Current
Magic Packet Mode
Power Supply Current
47
mA
I
DDMAGIC33
CLK = 33 MHz (Note 10)
80
mA
Pin Capacitance
C
IN
C
IDSEL
C
O
C
CLK
Twisted Pair Interface (10BASE-T)
Input Current at RXD
±
R
RXD
RXD
±
Differential Input Resistance
V
TIVB
RXD+, RXD– Open Circuit I
IN
= 0 mA
Input Voltage (Bias)
V
TIDV
Differential Mode Input Voltage
Range (RXD
±
)
V
TSQ+
RXD Positive Squelch Threshold (Peak)
Input Pin Capacitance
IDSEL Pin Capacitance
I/O or Output Pin Capacitance
CLK Pin Capacitance
FC = 1 MHz (Note 6)
FC = 1 MHz (Note 6)
FC = 1 MHz (Note 6)
FC = 1 MHz (Note 6)
10
8
10
12
pF
pF
pF
pF
5
I
IRXD
AV
SS
< V
IN
< AV
DD
–500
500
μ
A
K
V
10
AV
DD
–3.0 AV
DD
–1.5
AV
DD
= 5.0 V
–3.1
3.1
V
Sinusoid 5 MHz
≤
f
≤
10 MHz
LRT = 0 (CSR15, bit 9)
Sinusoid 5 MHz
≤
f
≤
10 MHz
LRT = 0 (CSR15, bit 9)
Sinusoid 5 MHz
≤
f
≤
10 MHz
LRT = 0 (CSR15, bit 9)
Sinusoid 5 MHz
≤
f
≤
10 MHz
LRT = 0 (CSR15, bit 9)
Sinusoid 5 MHz
≤
f
≤
10 MHz
LRT = 1 (CSR15, bit 9)
Sinusoid 5 MHz
≤
f
≤
10 MHz
LRT = 1 (CSR15, bit 9)
Sinusoid 5 MHz
≤
f
≤
10 MHz
LRT = 1 (CSR15, bit 9)
Sinusoid 5 MHz
≤
f
≤
10 MHz
LRT = 1 (CSR15, bit 9)
300
520
mV
V
TSQ-
RXD Negative Squelch Threshold (Peak)
–520
–300
mV
V
THS+
RXD Post-Squelch Positive
Threshold (Peak)
150
293
mV
V
THS-
RXD Post-Squelch Negative
Threshold (Peak)
–293
–150
mV
V
LTSQ+
RXD Positive Squelch Threshold (Peak)
180
312
mV
V
LTSQ-
RXD Negative Squelch Threshold (Peak)
–312
–180
mV
V
LTHS+
RXD Post-Squelch Positive
Threshold (Peak)
90
176
mV
V
LTHS-
RXD Post-Squelch Negative
Threshold (Peak)
–176
–90
mV