BQ20Z60-R1 Datasheet, PDF (6/15 Pages) Texas Instruments – SBS 1.1-COMPLIANT GAS GAUGE ENABLED WITH IMPEDANCE TRACK™ TECHNOLOGY FOR USE WITH THE bq29330

bq20z60-R1
SLUS991 – DECEMBER 2009
www.ti.com
OSCILLATOR (continued)
V_CC = 2.4 V to 2.6 V, T_A = –40°C to 85°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
t_(SXO) Start-up time⁽³⁾
LOW FREQUENCY OSCILLATOR
MIN
TYP
MAX
2.5
5
f_(LOSC)
f_(LEIO)
t_(LSXO)
Operating frequency
Frequency error^{(2) (4)}
Start-up time ⁽⁵⁾
T_A = 20°C to 70°C
32.768
–2.5
0.25
2.5
–1.5
0.25
1.5
500
(3) The start-up time is defined as the time it takes for the oscillator output frequency to be within 1 % of the specified frequency.
(4) The frequency error is measured from 32.768 kHz.
(5) The start-up time is defined as the time it takes for the oscillator output frequency to be ± 3%.
UNIT
ms
kHz
%
μs
DATA FLASH MEMORY CHARACTERISTICS
V_CC = 2.4 V to 2.6 V, T_A = –40°C to 85°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
t_DR
Data retention
See ⁽¹⁾
Flash programming write-cycles
See ⁽¹⁾
t_(WORDPROG)
I_(DDdPROG)
Word programming time
Flash-write supply current
See ⁽¹⁾
See ⁽¹⁾
(1) Specified by design. Not production tested.
MIN
10
20,000
TYP
MAX UNIT
Years
Cycles
2 ms
5
10 mA
REGISTER BACKUP
V_CC = 2.4 V to 2.6 V, T_A = –40°C to 85°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
I_(RB)
V_(RB)
RB data-retention input current
RB data-retention voltage⁽¹⁾
V_(RB) > V_(RBMIN), V_CC < V_IT-
V_(RB) > V_(RBMIN), V_CC < V_IT-,
T_A = 0°C to 50°C
(1) Specified by design. Not production tested.
MIN
TYP
MAX UNIT
1500
40
160 ^nA
1.7
V
SMBus TIMING SPECIFICATIONS
V_CC = 2.4 V to 2.6 V, T_A = –40°C to 85°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
f_SMB
SMBus operating frequency
f_MAS
SMBus master clock frequency
Slave mode, SMBC 50% duty cycle
Master mode, no clock low slave
extend
t_BUF
t_HD:STA
t_SU:STA
t_SU:STO
t_HD:DAT
Bus free time between start and stop
Hold time after (repeated) start
Repeated start setup time
Stop setup time
Data hold time
Receive mode
Transmit mode
t_SU:DAT
t_TIMEOUT
t_LOW
t_HIGH
Data setup time
Error signal/detect
Clock low period
Clock high period
See ⁽¹⁾
See ⁽²⁾
MIN
TYP
MAX UNIT
10
100
51.2
kHz
4.7
4
μs
4.7
4
0
300
ns
250
25
35 ms
4.7
μs
4
50
(1) The bq20z60-R1 times out when any clock low exceeds t_TIMEOUT.
(2) t_HIGH:MAX. is minimum bus idle time. SMBC = 1 for t > 50 μs causes reset of any transaction involving the bq20z60-R1 that is in
progress.
6
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