m48t201v STMicroelectronics, m48t201v Datasheet - Page 4

no-image

m48t201v

Manufacturer Part Number
m48t201v
Description
5.0 Or 3.3v Timekeeper Supervisor
Manufacturer
STMicroelectronics
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
m48t201v-85MH1
Manufacturer:
EPSON
Quantity:
773
Part Number:
m48t201v-85MH1
Manufacturer:
ST
0
Part Number:
m48t201v-85MH1
Manufacturer:
ST
Quantity:
20 000
Part Number:
m48t201v-85MH1 85MH1
Manufacturer:
ST
0
Part Number:
m48t201v-85MH1E
Manufacturer:
ST
Quantity:
556
Part Number:
m48t201v-85MH1E
Manufacturer:
ST
0
Part Number:
m48t201v-85MH1F
Manufacturer:
SONIX
Quantity:
101
Part Number:
m48t201v-85MH1F
Manufacturer:
ST
0
Part Number:
m48t201v-85MH1F
Manufacturer:
ST
Quantity:
20 000
Part Number:
m48t201v685MH1
Manufacturer:
ST
0
Part Number:
m48t201v85MH1
Manufacturer:
FREESCALE
Quantity:
1 140
Part Number:
m48t201v85MH1
Manufacturer:
ST
Quantity:
20 000
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
4/35
Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SOIC connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Hardware hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
G
Read cycle timing: RTC and external RAM control signals . . . . . . . . . . . . . . . . . . . . . . . . 11
Write cycle timing: RTC and external RAM control signals. . . . . . . . . . . . . . . . . . . . . . . . . 13
Alarm interrupt reset waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Back-up mode alarm waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
RSTIN1 and RSTIN2 timing waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Crystal accuracy across temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Calibration waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Supply voltage protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
AC testing load circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Power down/up mode AC waveforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
SOH44 – 44-lead plastic small outline, SNAPHAT, package outline . . . . . . . . . . . . . . . . . 30
SH – 4-pin SNAPHAT housing for 48mAh battery & crystal, package outline . . . . . . . . . . 31
SH – 4-pin SNAPHAT housing for 120mAh battery & crystal, package outline . . . . . . . . . 32
CON
timing when switching between RTC and external SRAM . . . . . . . . . . . . . . . . . . . . 10

Related parts for m48t201v