MOTOROLA FAST SRAM
MCM64Z916 PBGA PIN DESCRIPTIONS
Synchronous Load/Advance: Loads a new address into counter when
low. RAM uses internally generated burst addresses when high.
Clock: This signal registers the address, data in, and all control signals
except G and LBO.
Clock Enable: Disables the CK input when CKE is high.
(a) 6D, 7E, 6F, 7G, 6H, 7K, 6L, 6N, 7P
(b) 1D, 2E, 2G, 1H, 2K, 1L, 2M, 1N, 2P
Synchronous Data I/O: “x” refers to the byte being read or written
(byte a, b).
Flow–Through Option Input: This pin must remain in steady state (this
signal is not registered or latched). It must be tied high or low.
Low — flow–through functionality.
High — pipelined functionality.
Asynchronous Output Enable.
Linear Burst Order Input: This pin must remain in steady state (this
signal not registered or latched). It must be tied high or low.
Low — linear burst counter.
High — interleaved burst counter.
2A, 3A, 5A, 6A, 3B, 5B, 2C, 3C, 5C, 6C,
4G, 2R, 6R, 2T, 3T, 5T, 6T
Synchronous Address Inputs: These inputs are registered and must
meet setup and hold times.
Synchronous Address Inputs: These pins must be wired to the two
LSBs of the address bus for proper burst operation. These inputs are
registered and must meet setup and hold times.
Synchronous Byte Write Inputs: Enables write to byte “x” (byte a, b) in
conjunction with SW. Has no effect on read cycles.
Synchronous Chip Enable: Active low to enable chip.
Synchronous Chip Enable: Active high for depth expansion.
Synchronous Chip Enable: Active low for depth expansion.
Synchronous Write: This signal writes only those bytes that have been
selected using the byte write SBx pins.
Boundary Scan Pin, Test Clock: If boundary scan is not used, TCK
must be tied to VDD or VSS.
Boundary Scan Pin, Test Data In.
Boundary Scan Pin, Test Data Out.
Boundary Scan Pin, Test Mode Select.
Boundary Scan Pin, Asynchronous Test Reset. If boundary scan is not
used, TRST must be tied to VSS.
4C, 2J, 3J, 4J, 6J, 1R, 4R
Core Power Supply.
1A, 7A, 1F, 7F, 1J, 7J, 1M, 7M, 1U, 7U
I/O Power Supply.
3D, 5D, 3E, 5E, 3F, 5F, 5G, 3H, 5H, 3K,
5K, 3L, 3M, 5M, 3N, 5N, 3P, 5P, 7T
4A, 1B, 7B, 1C, 7C, 2D, 4D, 7D, 1E, 6E,
2F, 1G, 6G, 2H, 7H, 1K, 6K, 2L, 4L, 7L,
6M, 2N, 7N, 1P, 6P, 7R, 1T, 4T
No Connection: There is no connection to the chip.
Freescale Semiconductor, Inc.
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