EM773FHN33 NXP Semiconductors, EM773FHN33 Datasheet - Page 34

• Manufacturer Part Number: EM773FHN33
• Description: The EM773 is an ARM Cortex-M0 based, low-cost 32-bit energy metering IC, designed for 8/16-bit smart metering applications
• Manufacturer: NXP Semiconductors

NXP Semiconductors
EM773
Product data sheet
10.3 External clock
Table 9.
T
[1]
[2]
Symbol
f
T
t
t
t
t
osc
CHCX
CLCX
CLCH
CHCL
amb
Fig 17. External clock timing (with an amplitude of at least V
cy(clk)
Parameters are valid over operating temperature range unless otherwise specified.
Typical ratings are not guaranteed. The values listed are at room temperature (25 C), nominal supply
voltages.
= 40 C to +85 C; V
Dynamic characteristic: external clock
Parameter
oscillator frequency
clock cycle time
clock HIGH time
clock LOW time
clock rise time
clock fall time
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 3 January 2012
DD
over specified ranges.
t
CHCL
Conditions
t
CLCX
[1]
Min
1
40
T
T
-
-
cy(clk)
cy(clk)
T
cy(clk)
 0.4
 0.4
t
CLCH
t
CHCX
i(RMS)
Typ
-
-
-
-
-
-
= 200 mV)
[2]
Energy metering IC
002aaa907
© NXP B.V. 2012. All rights reserved.
Max
25
1000
-
-
5
5
EM773
Unit
MHz
ns
ns
ns
ns
ns
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