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Número de pieza | M69KM048AA | |
Descripción | Burst PSRAM | |
Fabricantes | STMicroelectronics | |
Logotipo | ||
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M69KM048AA
32 Mbit (2 Mb x16), 83MHz Clock Rate,
1.8V Supply, Multiplexed I/O, Bare Die, Burst PSRAM
Preliminary Data
Feature summary
■ Supply Voltage
– VCC = 1.7 to 1.95V core supply voltage
– VCCQ = 1.7 to 1.95V for I/O buffers
■ Multiplexed Address/Data bus
■ Asynchronous Operating Modes
– Random Read: 70ns access time
– Asynchronous Write
■ Synchronous modes
– Synchronous Read:
Fixed length (4, 8, and 16 Words) or
continuous burst
Clock Frequency: 83MHz (max.)
– Synchronous Write: continuous burst
■ Low Power Consumption
– Active Current: < 35mA
– Standby Current: < 110µA
– Deep Power-Down Current: 10µA (typical)
■ Low Power Features
– Partial Array Self-Refresh (PASR)
– Deep Power-Down (DPD) Mode
– Automatic Temperature-compensated Self-
Refresh
■ Operating Temperature
– –30°C to +85°C
Wafer
The M69KM048AA is only available as part of a multi-chip package Product.
May 2006
Rev 1
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
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1
1 page M69KM048AA
List of figures
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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.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
Figure 27.
Figure 28.
Figure 29.
Logic Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Variable Latency Mode, No Refresh Collision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Fixed Latency Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Refresh Collision during Synchronous Burst Read in Variable Latency Mode . . . . . . . . . . 24
Set Configuration Register (software method) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Read Configuration Register (software method) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
WAIT Configuration Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
WAIT Polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
AC Measurement I/O Waveform. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
AC Input Transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
AC Measurement Load Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Asynchronous Random Read AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Asynchronous Write AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Asynchronous Write followed by Read AC waveforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
CR Controlled Configuration Register Program, Asynchronous Mode . . . . . . . . . . . . . . . . 45
Clock input AC Waveform. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Single Synchronous Burst Read AC waveforms (Fixed Latency mode). . . . . . . . . . . . . . . 47
4-Word Synchronous Burst Read AC waveforms (Variable Latency mode). . . . . . . . . . . . 48
Synchronous Burst Read Suspend and Resume AC waveforms . . . . . . . . . . . . . . . . . . . . 49
Burst Read Showing End-of-Row Condition AC waveforms (No Wrap) . . . . . . . . . . . . . . . 50
Asynchronous Write followed by Burst Read AC waveforms . . . . . . . . . . . . . . . . . . . . . . . 51
Burst Read followed by Asynchronous Write AC waveforms . . . . . . . . . . . . . . . . . . . . . . . 52
4-Word Synchronous Burst Write AC waveforms (Fixed Latency mode) . . . . . . . . . . . . . . 54
Burst Write Showing End-of-Row Condition AC waveforms (No Wrap) . . . . . . . . . . . . . . . 55
Synchronous Burst Write Followed by Read AC waveforms . . . . . . . . . . . . . . . . . . . . . . . 56
CR Controlled Configuration Register Program, Synchronous Mode. . . . . . . . . . . . . . . . . 57
Power-Up AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Deep Power-Down Entry and Exit AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
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5 Page M69KM048AA
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Signal descriptions
2.12
VCC Supply Voltage
The VCC Supply Voltage is the core supply voltage.
2.13
VCCQ Supply Voltage
VCCQ provides the power supply for the I/O pins. This allows all Outputs to be powered
independently from the core power supply, VCC.
2.14
VSS Ground.
The VSS Ground is the reference for all voltage measurements.
2.15
VSSQ Ground
VSSQ ground is the reference for the input/output circuitry driven by VCCQ. VSSQ must be
connected to VSS.
11/61
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Páginas | Total 30 Páginas | |
PDF Descargar | [ Datasheet M69KM048AA.PDF ] |
Número de pieza | Descripción | Fabricantes |
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