Semiconductor memory device and semiconductor device

1. A semiconductor memory device, comprising:

a cell array block including a plurality of memory cells arranged therein; and

a controller,

wherein the controller controls the semiconductor memory device so that:

an operation of reading out data from a second region in the cell array block is initiated before completion of an operation of outputting data read out from a first region in the cell array block;

data read out from the second region is output successively after completion of the operation of outputting data read out from the first region;

the operation of outputting data read out from the first region is performed in synchronism with a first edge of an output control signal for controlling the operation of outputting data read out from the first region; and

an address specifying the second region is latched in synchronism with a second edge of the output control signal, and

wherein the first edge is the next edge of the output control signal subsequent to the second edge.

2. The semiconductor memory device of claim 1 , wherein after completion of the operation of latching the address specifying the second region, the operation of outputting data read out from the first region is performed in synchronism with the first and second edges of the output control signal.

3. The semiconductor memory device of claim 1 , wherein after the completion of the operation of latching the address specifying the second region, the operation of outputting data read out from the first region continues to be performed in synchronism with the first edge of the output control signal.

4. The semiconductor memory device of claim 1 , wherein the output control signal is a read enable signal.

5. The semiconductor memory device, of, claim 1 wherein:

the output control signal is a read enable signal; and

the address latching operation is controlled further by a signal for controlling an operation of latching an address and input data stored in the cell array block.

6. A semiconductor memory device, comprising:

a first address holding circuit for holding, a first address signal, which is input at a first timing;

a second address holding circuit for holding a second address signal, which is input at a second timing; and

a controller,

wherein the controller controls the semiconductor memory device so that the second address signal is input while output data is being output without changing a cycle of transferring the output data via a signal line for transferring the output data to outside,

an operation of outputting data read out from a first region in the cell array block is performed in synchronism with a first edge of an output control, signal for controlling the operation of outputting data read out from the first region,

an address specifying a second region in the cell array block is latched in synchronism with a second edge of the output control signal, and

the first edge is the next edge of the output control signal subsequent to the second edge.

7. The semiconductor memory device of claim 6 , further comprising:

a first edge, detection circuit for detecting the first edge of a first signal for controlling an operation of transferring the output data to outside;

a second edge detection circuit for detecting the second edge of the first signal; and

a switching circuit for transferring the output data to outside in response to a detection signal from the first edge detection circuit and for latching the second address signal to the second address holding circuit in response to a detection signal from the second edge detection circuit.

8. The semiconductor memory device of claim 7 , wherein the switching circuit compares the first address signal and the second address signal with each other.

9. A semiconductor device, comprising:

the semiconductor memory device of claim 6 ; and

a control circuit for outputting a control signal, a data signal and an address specifying signal to the semiconductor memory device, and for receiving a data output signal from the semiconductor memory device, wherein:

a data transfer of the address specifying signal and an input/output signal between the control circuit and the semiconductor memory device is performed via a common signal line in synchronism with the control signal;

the data output signal from the semiconductor memory device is received in synchronism with a first edge of the control signal; and

the control circuit outputs the address specifying signal in synchronism with a second edge of the control signal.

10. The semiconductor device of claim 9 , further comprising a host circuit for outputting an instruction signal,

wherein the control circuit receives an instruction signal from the host circuit to output the control signal, the data signal and the address specifying signal to the semiconductor memory device, and receives the data output signal from the semiconductor memory device.

11. A semiconductor device, comprising:

the semiconductor memory device of claim 6 ; and

a control circuit for outputting a control signal, a data signal and an address specifying signal to the semiconductor memory device, and for receiving a data output signal from the semiconductor memory device, wherein:

a data transfer of the address specifying signal and an input/output signal between the control circuit and the semiconductor memory device is performed via a common signal line in synchronism with the control signal; and

data output signal is output to the semiconductor memory device in synchronism with first and second edges of the control signal.

12. The semiconductor device of claim 11 , further comprising a host circuit for outputting an instruction signal,

wherein the control circuit receives the instruction signal from the host circuit to output the control signal, the data signal and the address specifying signal to the semiconductor memory device, and receives the data output signal from the semiconductor memory device.

13. The semiconductor memory device of claim 6 , wherein the semiconductor memory device is a NAND-type flash memory.