M48Z02-150PC1TR STMICROELECTRONICS [STMicroelectronics], M48Z02-150PC1TR Datasheet

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M48Z02-150PC1TR

Manufacturer Part Number
M48Z02-150PC1TR
Description
5V, 16 Kbit (2Kb x 8) ZEROPOWER SRAM
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
FEATURES SUMMARY
April 2003
Rev. 3.1
INTEGRATED, ULTRA LOW POWER SRAM
and POWER-FAIL CONTROL CIRCUIT
UNLIMITED WRITE CYCLES
READ CYCLE TIME EQUALS WRITE CYCLE
TIME
AUTOMATIC POWER-FAIL CHIP DESELECT
and WRITE PROTECTION
WRITE PROTECT VOLTAGES
(V
– M48Z02: V
– M48Z12: V
SELF-CONTAINED BATTERY IN THE
CAPHAT™ DIP PACKAGE
PIN and FUNCTION COMPATIBLE WITH
JEDEC STANDARD 2K x 8 SRAMs
PFD
4.5V
4.2V
= Power-fail Deselect Voltage):
V
V
PFD
PFD
CC
CC
= 4.75 to 5.5V;
= 4.5 to 5.5V;
4.75V
4.5V
5V, 16 Kbit (2Kb x 8) ZEROPOWER
Figure 1. 24-pin CAPHAT, DIP Package
24
PCDIP24 (PC)
Battery/Crystal
CAPHAT
1
M48Z02
M48Z12
®
SRAM
1/16

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M48Z02-150PC1TR Summary of contents

Page 1

... INTEGRATED, ULTRA LOW POWER SRAM and POWER-FAIL CONTROL CIRCUIT UNLIMITED WRITE CYCLES READ CYCLE TIME EQUALS WRITE CYCLE TIME AUTOMATIC POWER-FAIL CHIP DESELECT and WRITE PROTECTION WRITE PROTECT VOLTAGES (V = Power-fail Deselect Voltage): PFD – M48Z02 4.75 to 5.5V; CC 4.5V V 4.75V PFD – M48Z12 4.5 to 5.5V ...

Page 2

... M48Z02, M48Z12 TABLE OF CONTENTS SUMMARY DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Figure 2. Logic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Table 1. Signal Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Figure 3. DIP Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Figure 4. Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 MAXIMUM RATING Table 2. Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 DC AND AC PARAMETERS Table 3. Operating and AC Measurement Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 5. AC Testing Load Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Table 4. Capacitance Table 5. DC Characteristics OPERATION MODES ...

Page 3

... RAM which is pin and functional compatible with the DS1220. A special 24-pin, 600mil DIP CAPHAT™ package houses the M48Z02/12 silicon with a long life lithi- um button cell to form a highly integrated battery backed-up memory solution. The M48Z02/12 button cell has sufficient capacity ...

Page 4

... M48Z02, M48Z12 Figure 4. Block Diagram LITHIUM CELL VOLTAGE SENSE MAXIMUM RATING Stressing the device above the rating listed in the “Absolute Maximum Ratings” table may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicat the Operating sections of this specification is Table 2 ...

Page 5

... Grade Grade 6 5V 1.8k OUT 100pF AI01019 (1,2) Parameter M48Z02, M48Z12 M48Z02 M48Z12 4.75 to 5.5 4 – – 100 100 ...

Page 6

... Note: 1. Valid for Ambient Operating Temperature Outputs deselected. 3. Negative spikes of –1V allowed for up to 10ns once per Cycle. OPERATION MODES The M48Z02/12 also has its own Power-fail Detect circuit. The control circuitry constantly monitors the single 5V supply for an out of tolerance condi- tion. When V ...

Page 7

... READ Mode The M48Z02/ the READ Mode whenever W (WRITE Enable) is high and E (Chip Enable) is low. The device architecture allows ripple-through access of data from eight of 16,384 locations in the static storage array. Thus, the unique address specified by the 11 Address Inputs defines which one of the 2,048 bytes of data accessed ...

Page 8

... M48Z02, M48Z12 WRITE Mode The M48Z02/ the WRITE Mode whenever W and E are active. The start of a WRITE is refer- enced from the latter occurring falling edge WRITE is terminated by the earlier rising edge The addresses must be held valid throughout the cycle ...

Page 9

... Address Valid to WRITE Enable High AVWH t Address Valid to Chip Enable High AVEH t WRITE Enable High to Output Transition WHQX Note: 1. Valid for Ambient Operating Temperature: T (1) Parameter Min = 0 to 70°C or –40 to 85° M48Z02, M48Z12 M48Z02/M48Z12 –70 –150 –200 Max Min Max Min 70 150 200 0 0 ...

Page 10

... PFD assured the memory will write protected state, provided the V fall time is not less than t CC The M48Z02/12 may respond to transient noise spikes on V that reach into the deselect window CC during the time the device is sampling V fore, decoupling of the power supply lines is rec- ommended ...

Page 11

... M48Z02 M48Z12 . = 0 to 70°C or –40 to 85° -0.038 ppm 10 M48Z02, M48Z12 Min Max 0 300 4.75 to 5.5V or 4.5 to 5.5V (except where noted). CC Min Typ Max 4.5 4.6 4.75 4.2 4.3 4.5 3 4.75 to 5.5V or 4.5 to 5.5V (except where noted ...

Page 12

... M48Z02, M48Z12 V Noise And Negative Going Transients CC I transients, including those produced by output CC switching, can produce voltage fluctuations, re- sulting in spikes on the V bus. These transients CC can be reduced if capacitors are used to store en- ergy which stabilizes the V CC stored in the bypass capacitors will be released as low going spikes are generated or energy will be absorbed when overshoots occur ...

Page 13

... Min Max 8.89 9.65 0.38 0.76 8.38 8.89 0.38 0.53 1.14 1.78 0.20 0.31 34.29 34.80 17.83 18.34 2.29 2.79 25.15 30.73 15.24 16.00 3.05 3.81 24 M48Z02, M48Z12 C eA PCDIP inches Typ Min 0.350 0.380 0.015 0.030 0.330 0.350 0.015 0.021 0.045 0.070 0.008 0.012 1.350 1.370 0.702 0.722 0.090 0.110 0.990 1.210 0.600 0.630 0.120 0.150 24 Max 13/16 ...

Page 14

... PFD 4.5 to 5.5V 4.2 to 4.5V CC PFD Speed –70 = 70ns (M48Z02/12) –150 = 150ns (M48Z02/12) –200 = 200ns (M48Z02/12) Package PC = PCDIP24 Temperature Range 70° –40 to 85°C Shipping Method blank = Tubes TR = Tape & Reel For a list of available options (e.g., Speed, Package) or for further information on any aspect of this device, please contact the ST Sales Office nearest you ...

Page 15

... Reformatted; Temperature information added to tables (Table 10); Figure 09-Jul-01 2.0 updated (Figure 10) 17-Dec-01 2.1 Remove references to “clock” in document Updated V 20-May-02 2.2 01-Apr-03 3.0 v2.2 template applied; test condition updated (Table 10) 22-Apr-03 3.1 Fix error in Ordering Information (Table 12) Revision Details Noise and Negative Going Transients text CC M48Z02, M48Z12 15/16 ...

Page 16

... M48Z02, M48Z12 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice ...

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