71M6541D-IGT/F Maxim Integrated Products, 71M6541D-IGT/F Datasheet - Page 148
71M6541D-IGT/F
Manufacturer Part Number
71M6541D-IGT/F
Description
PMIC Solutions Precision Energy Meter IC
Manufacturer
Maxim Integrated Products
Type
Metering SoCr
Datasheet
1.71M6541F-DB.pdf
(165 pages)
Specifications of 71M6541D-IGT/F
Core
8051
Core Architecture
8051
Data Bus Width
8 bit
Data Ram Size
3 KB
Device Million Instructions Per Second
5 MIPS
Interface Type
I2C, ICE, SPI, UART
Maximum Clock Frequency
5 MHz
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Number Of Programmable I/os
30
Number Of Timers
2
On-chip Adc
22 bit
Operating Supply Voltage
3 V to 3.6 V
Package / Case
LQFP-64
Processor Series
8051
Program Memory Size
32 KB
Program Memory Type
Flash
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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6.4.14 VREF
Table 109
148
Parameter
VREF output voltage,
VREF(22)
VREF output voltage,
VREF(22)
VREF output impedance
VREF power supply sensitivity
VREF input impedance
VREF chop step, trimmed
VNOM definition (see note 2)
VNOM temperature
coefficients:
VREF(T) deviation from
VNOM(T) (see note 1):
VREF aging
Notes:
VREF
1. Guaranteed by design; not production tested.
2. This relationship describes the nominal behavior of VREF at different temperatures, as
3. For the parameters in this table, unless otherwise specified, VREF_DIS = 0, PLL_FAST=1
ΔVREF / ΔV3P3A
TC1 =
TC2 =
VNOM
(
T
)
governed by a second order polynomial of 1
−
shows the performance specifications for the ADC reference voltage (VREF).
VNOM
(
T
)
(
T
)
10
62
6
© 2008–2011 Teridian Semiconductor Corporation
Table 109: VREF Performance Specifications
T
PLL_FAST=0
VREF_CAL = 1,
I
V3P3A = 3.0 to 3.6 V
VREF_DIS = 1,
VREF = 1.3 V to 1.7 V
VREF(CHOP=01) −
VREF(CHOP=10)
VNOM
LOAD
A
= 22 ºC
= 10 µA, -10 µA
(
T
Condition
)
=
VREF
−
. 0
st
557
275
and 2
(
22
)
+
− 95
+
nd
. 0
. 4
(
T
order coefficients TC1 and TC2.
00028
−
⋅
22
TRIMT
1.193
)
Min
-1.5
100
TC
-10
-40
⋅
TRIMT
1
+
(
T
1.195
1.195
−
Typ
±25
0
22
)
2
TC
1.197
Max
2
+40
3.2
1.5
10
ppm/°C
µV/°C
µV/°C
mV/V
ppm/
Unit
year
mV
kΩ
kΩ
V
V
V
v1.1
2
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