MPC2104 View Datasheet(PDF) - Motorola => Freescale

Part Name

Description

Manufacturer

MPC2104

256KB and 512KB BurstRAM™ Secondary Cache Modules for PowerPC™ PReP/CHRP Platforms

Motorola => Freescale 

DATA RAMs AC OPERATING CONDITIONS AND CHARACTERISTICS

(VCC = 5.0 V ± 5% TA = 0 to + 70°C, Unless Otherwise Noted)

Input Timing Measurement Reference Level . . . . . . . . . . . . . . . 1.5 V

Input Pulse Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 3.0 V

Input Rise/Fall Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ns

Output Timing Reference Level . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 V

Output Load . . . . . . . . . . . . See Figure 1A Unless Otherwise Noted

SYNCHRONOUS DATA RAMs READ/WRITE CYCLE TIMING (See Notes 1, 2, 3, and 7)

MPC2104

MPC2105

MPC2106

Parameter

Symbol

Min

Max

Unit Notes

Cycle Time

Clock Access Time

Output Enable to Output Valid

Clock High to Output Active

Clock High to Output Change

Output Enable to Output Active

Output Disable to Q High–Z

Clock High to Q High–Z

Clock High Pulse Width

Clock Low Pulse Width

Setup Time

Setup Times:

tKHKH

15

tKHQV

—

tGLQV

—

tKHQX1

6

tKHQX2

3

tGLQX

0

tGHQZ

2

tKHQZ

—

tKHKL

5

tKLKH

5

Address tAVKH

7.5

Address Status tSVKH

2.5

Data In tDVKH

Write tWVKH

Address Advance tBAVVKH

Chip Enable tEVKH

—

ns

9

ns

4

5

ns

—

ns

—

ns

—

ns

6

ns

6

ns

—

ns

—

ns

—

ns 5, 6

—

ns

5

Hold Times:

Address tKHAX

0.5

Address Status tKHTSX

Data In tKHDX

Write tKHWX

Address Advance tKHBAX

Chip Enable tKHEX

—

ns

5

NOTES:

1. In setup and hold times, W (write) refers to either one or both byte write enables LW and UW.

2. All read and write cycle timings are referenced from CLK or COE.

3. COE is a don’t care when UW or LW is sampled low.

4. Maximum access times are guaranteed for all possible PowerPC external bus cycles.

5. This is a synchronous device. All addresses must meet the specified setup and hold times for ALL rising edges of CLK whenever TSP or

TSC is low, and the chip is selected. All other synchronous inputs must meet the specified setup and hold times for ALL rising edges of

CLK when the chip is enabled. Chip enable must be valid at each rising edge of clock for the device (when TSP or TSC is low) to remain

enabled.

6. 5 ns of set–up delay is incurred in address buffers.

7. Applies to MPC2104, MPC2105, and MPC2106.

MOTOROLA FAST SRAM

MPC2104•MPC2105•MPC2106•MPC2107

9

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