m48t35av STMicroelectronics, m48t35av Datasheet - Page 4
m48t35av
Manufacturer Part Number
m48t35av
Description
3.3v, 256kbit 32kbit X 8 Timekeeper Sram
Manufacturer
STMicroelectronics
Datasheet
1.M48T35AV.pdf
(28 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
m48t35av-10MH1
Manufacturer:
ST
Quantity:
20 000
Company:
Part Number:
m48t35av-10MH1E
Manufacturer:
Vishay
Quantity:
6 853
Company:
Part Number:
m48t35av-10MH1F
Manufacturer:
ST
Quantity:
5 510
Company:
Part Number:
m48t35av-10MH1F
Manufacturer:
NSC
Quantity:
5 510
Company:
Part Number:
m48t35av-10MHI
Manufacturer:
ST
Quantity:
5 510
Company:
Part Number:
m48t35av-10MHI
Manufacturer:
INTERSIL
Quantity:
5 510
Part Number:
m48t35av-10PC1
Manufacturer:
ST
Quantity:
20 000
List of figures
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Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
DIP connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SOIC connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Read mode AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Write enable controlled, write mode AC waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Chip enable controlled, write mode AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Checking the BOK flag status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Crystal accuracy across temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Clock calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Supply voltage protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
AC measurement load circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Power down/up mode AC waveforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
PCDIP28 – 28-pin plastic DIP, battery CAPHAT™, package outline . . . . . . . . . . . . . . . . . 22
SOH28 – 28-lead plastic small outline, 4-socket battery SNAPHAT, package outline . . . . 23
SH – 4-pin SNAPHAT housing for 48mAh battery & crystal, package outline . . . . . . . . . . 24
SH – 4-pin SNAPHAT housing for 120mAh battery & crystal, pack. outline. . . . . . . . . . . . 25